• Fountain Pen Custom Flex Nib Blue Black Ink Fine (Mint) w/Spares

    Disassemble the pen being careful not to over tighten if you've attempted to unscrew in the wrong direction. If possible, use distilled water, mix the water with regular dish soap, or a solution of 10% clear ammonia to water.
    $9.99
    Material: Steel
    Free shipping
    Vintage: No
    or Best Offer
    Brand: Unbranded
    Guaranteed by Sat, Jun 22
    Only 1 left!
  • NOODLERS DEMONSTRATOR KONRAD PISTON FLEX NIB FOUNTAIN PEN

    The Konrad pen is 5 1/8”long with the cap closed. The blind cap (end of barrel) unscrews to reveal a twist button that operates an internal filling piston. The Konrad sports a large stainless steel Flex nib and matching cap accents.
    $20.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    6 watching
  • NOODLERS TINIAN TREASURE ACRYLIC KONRAD PISTON FLEX NIB FOUNTAIN PEN

    The Konrad pen is 5 1/8”long with the cap closed. The blind cap (end of barrel) unscrews to reveal a twist button that operates an internal filling piston. The Konrad sports a large stainless steel Flex nib and matching cap accents.
    $40.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    10 watching
  • Fountain Pen Custom Flex Nib Blue Black Ink Fine (Ruby Red) w/Spares

    Disassemble the pen being careful not to over tighten if you've attempted to unscrew in the wrong direction. If possible, use distilled water, mix the water with regular dish soap, or a solution of 10% clear ammonia to water.
    $9.99
    Material: Steel
    Free shipping
    Vintage: No
    or Best Offer
    Brand: Unbranded
    Guaranteed by Sat, Jun 22
    Only 1 left!
  • NOODLERS DEMONSTRATOR AHAB PISTON FLEX NIB FOUNTAIN PEN &JINHAO X450 ,X750

    NOODLERS DEMONSTRATOR AHAB PISTON FLEX NIB FOUNTAIN PEN. Condition is Used. JINHAO X450 AND X750 Condition  is used. And noddlers 308 cartridges  3 are used other 7 are new still ..the last pen is a piston  fill cheap pen with a lamy 1.5 nib
    $30.00
    Brand: Noodler's
    $3.82 shipping
    or Best Offer
  • Monogram (Rexall) Filigree Eye dropper Fountain Pen, BHR, Medium Flex 14k Nib

    This pen is in good overall condition with no major issues. Barrel and cap show age related wear with minor nicks, scratches, and marks (consistent with normal desk wear for a pen this age). Gold filigree shows wear and plating loss in a few areas.
    $24.50
    11 bids
    $3.50 shipping
    Ending Saturday at 5:45PM PDT2d 10hFeatures: Gold TrimVintage: YesPersonalized: No
  • Fountain Pen Custom Flex Nib Blue Black Ink Fine (Steely Blue) w/Spares

    Disassemble the pen being careful not to over tighten if you've attempted to unscrew in the wrong direction. If possible, use distilled water, mix the water with regular dish soap, or a solution of 10% clear ammonia to water.
    $9.99
    Material: Steel
    Free shipping
    Vintage: No
    or Best Offer
    Brand: Unbranded
    Guaranteed by Sat, Jun 22
    4 watching
  • NOODLERS MEDIEVAL LAPIS AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    2 watching
  • Ultra-rare blue herringbone Conway Stewart 60 Fountain Pen, stub italic Flex Nib

    Ultra-rare blue herringbone Conway Stewart 60 Fountain Pen, specially upgraded with Parker stub italic Flexible Nib. Great Britain and Northern Ireland. Slovak Republic (Slovakia). Serbia, Republic of.
    $50.00
    0 bids
    $7.50 shipping
    Ending Friday at 2:52PM PDT1d 7hMaterial: GoldVintage: YesBrand: Conway Stewart
  • NOODLERS MARBLED MARIANAS ACRYLIC NEPONSET PISTON FLEX NIB FOUNTAIN PEN

    The ink flow is consistent and generous from the three fissure ebonite music feed.
    $75.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • John Holland Grey Fountain Pen John Holland Jewel 14k Flex Nib Restored

    Condition is Used. Penhas new sac installed and ready to write.
    $26.00
    5 bids
    $8.60 shipping
    Ending Friday at 8:22PM PDT1d 12hBrand: John Holland
  • Jinhao X450 Blue Marble Chunky Medium Flex Nib Fountain Pen For Office Present

    Model: X450. 1 x Fountain Pen. Blue and white marble lacquered finish with gold plated trims. Comfortable to hold, smooth to write. Best gift for your friends and your family. Great for collection.
    $3.89
    From China
    Free shipping
    Material: Metal
    153 sold
    Brand: Unbranded
  • NOODLERS IVORY DARKNESS KONRAD PISTON FLEX NIB FOUNTAIN PEN

    The Konrad pen is 5 1/8”long with the cap closed. The blind cap (end of barrel) unscrews to reveal a twist button that operates an internal filling piston. The Konrad sports a large stainless steel Flex nib and matching cap accents.
    $20.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • Noodlers Ahab Black Piston Fill Fountain Pen Flex Nib

    This is most noticeable in demonstrators and bright colors. NOODLERS AHAB BLACK FOUNTAIN PEN - FLEX NIB. The Noodlers flex pens were designed for the hand-on tinkerer - they are made to be taken apart and adjusted.
    $23.00
    Brand: Noodler's
    Free shipping
    Guaranteed by Mon, Jun 24
    3 watching
  • NOODLERS Fountain Pen - CLEAR AHAB DEMONSTRATOR - Flex Nib - New In Box - #15021

    CLEAR AHAB DEMONSTRATOR w/ Flex Nib. Fountain Pen.
    $24.95
    Top Rated Plus
    Free shipping
    Brand: Noodler's
    Guaranteed by Tue, Jun 25
    241 sold
  • Stipula I Castoni Lapis Fountain Pen Titanium T-Flex Nib Gold Trim, Box & Papers

    Stipula I Cast oni Lapis Blue Fountain Pen with Gold Trim. Here is a really cool marbled blue color that Stipula simply calls "Lapis". It has gold trim instead of the more common rhodium trim. It has a Titanium T-Flex nib which is about as flexible as any other modern flex nib pen.
    $159.95
    Material: Resin
    $10.50 shipping
    Features: Gold Trim
    or Best Offer
    Vintage: Yes
  • Noodler's Ink Ahab Piston Fountain Pen, Steel Flex Nib - Ahab's Pearl (15043)

    Model 15043. "From Noodler's Ink - the Ahab Flex Nib Piston Fill Fountain Pen. Even with the classic design and a steel flex nib, this pen is remarkably affordable. Barrel Color(s): Ahab's Pearl. Model: Ahab.
    Material: Steel
    Was: Previous Price$23.00
    Brand: Noodler's Ink
    Free shipping
    35 watching
  • vtg Aikin Lanbert Waterman SkyWriter Fountain Pen 14K Gold Semi Flex Nib Canada

    The Paper is from a Rhodia Dotpad No. 16, the dots are 5mm apart to help you gauge the line variation. This is a collectible 1930 or 40s fountain pen, and also a very functional writing tool. ~ Working (New Ink Sac) Pen / 14K Nib.
    $159.94
    Top Rated Plus
    $5.95 shipping
    Material: Ebonite
    or Best Offer
    Features: Chrome Trim
    Guaranteed by Tue, Jun 25
    Vintage: Yes
  • NOODLERS ARIZONA STANDARD PISTON FLEX NIB FOUNTAIN PEN

    The nib feeds more ink as it is flexed - the "auto-vent flex" opens the air passage to the feed far more than a conventional nib is capable of. Slower writing may be necessary if one is writing Victorian style script vs. fine shorthand - which can be written more rapidly.
    $16.10
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • NOODLERS TIGER AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    5 watching
  • Vintage STEPHENS´s No 76 fountain pen 14ct flexy OM nib Freshly serviced

    Nib is 14ct gold. Freshly serviced with new ink sac. Total length 12.6 cm when cap closed. Barrel has no deep scratches. Cap has no deep scratches. No engraving.
    $12.50
    3 bids
    $13.00 shipping
    Ending Jun 23 at 10:38PM PDT3d 15hFrom Germany
  • 1920´s ROYAL fountain pen 14ct semi flex F nib Freshly serviced

    Nib is 14ct gold. Freshly serviced with new ink sac. Nib type F with semi flex from F through M to B, see sample. Total length 11.1 cm when cap closed. Barrel has no deep scratches.
    $20.00
    8 bids
    $13.00 shipping
    Ending Jun 23 at 10:37PM PDT3d 15hFrom GermanyBrand: Royal
  • Noodlers Ink Flex Nib - Fits Ahab & Konrad Fountain Pens - #18094

    A video can be seen on Noodler's website on how to change your Nib. Noodler's Ink.
    $8.95
    Top Rated Plus
    Free shipping
    Brand: Noodler's Ink
    Guaranteed by Tue, Jun 25
    Only 1 left!
  • NOODLERS TIGER DEMONSTRATOR KONRAD PISTON FLEX NIB FOUNTAIN PEN

    The Konrad pen is 5 1/8”long with the cap closed. The blind cap (end of barrel) unscrews to reveal a twist button that operates an internal filling piston. The Konrad sports a large stainless steel Flex nib and matching cap accents.
    $20.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    8 watching
  • Noodlers Nib Creaper Standard Flex Jade Green Piston Fountain Pen Flex Nib

    A small ink window shows how much ink is left in your pen. This is most noticeable in demonstrators and bright colors. The Nib Creaper (also known as the "Standard Flex Pen") was the first fountain pen produced by Noodler's, introduced in 2010.
    $16.99
    Brand: Noodler's
    Free shipping
    Guaranteed by Mon, Jun 24
    8 watching
  • NOODLERS APACHE TORTOISE AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    Only 1 left!
  • NOODLERS LAPIS INFERNO STANDARD PISTON FLEX NIB FOUNTAIN PEN

    The nib feeds more ink as it is flexed - the "auto-vent flex" opens the air passage to the feed far more than a conventional nib is capable of. Slower writing may be necessary if one is writing Victorian style script vs. fine shorthand - which can be written more rapidly.
    $16.10
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    4 watching
  • NOODLERS BLACK EBONITE NEPONSET PISTON FLEX NIB FOUNTAIN PEN

    The ink flow is consistent and generous from the three fissure ebonite music feed.
    $75.00
    Material: Ebonite
    or Best Offer
    Brand: Noodler's
    FAST 'N FREE
    9 watching
  • NOODLERS GREEN MOUNTAIN AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • Noodler's Ink Konrad Flex Nib - Fountain Pen - 1820 Essex - NEW in Box ND-14047

    The Konrad is a piston-fill fountain pen that is fitted with the Noodler's stainless steel flexible #6 nib. Expect variation in each pen body due to the nature of the material each pattern is unique.
    $27.95
    Top Rated Plus
    Free shipping
    Brand: Noodler's Ink
    Guaranteed by Tue, Jun 25
  • Noodler's Nib Creaper Standard Flex Fountain Pen - 17000 - Clear Demo

    It has a smaller barrel than the Konrad and features a smaller nib. Nib material: stainless steel. Nib color: silver. Nib size: M - 0.7mm. Body Color: Transparent Demonstrator. Ink is NOT included with this pen.
    $16.10
    Brand: Noodler's Ink
    $2.99 shipping
    Guaranteed by Tue, Jun 25
  • NOODLERS MANDARIN AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    Only 1 left!
  • NOODLERS #10 DIXIE CHESTNUT EBONITE KONRAD PISTON FLEX NIB FOUNTAIN PEN

    The Konrad pen is 5 1/8”long with the cap closed. The blind cap (end of barrel) unscrews to reveal a twist button that operates an internal filling piston. The Konrad sports a large stainless steel Flex nib and matching cap accents.
    $40.00
    Material: Ebonite
    or Best Offer
    Brand: Noodler's
    FAST 'N FREE
    Only 1 left!
  • NOODLERS ARIZONA AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    $3.50 shipping
    or Best Offer
    5 watching
  • Noodler's Ink Ahab Flex Nib - Fountain Pen - Black Executive - NEW in Box 15001

    Fills via ink pump or can also be used as an eyedropper fill. Noodler's Ink Ahab Flex Nib - Fountain Pen - Black Executive - Flex Nib • Nib: Stainless Flex Steel. Every item is covered by their respective manufacturer warranty.
    $26.50
    Brand: Noodler's Ink
    Free shipping
    Guaranteed by Tue, Jun 25
  • vtg Aikin Lambert CAPITOL DROPFILL SLIP CAP Flex 14K Gold Nib Fountain Pen BCHR

    Aikin Lambert "CAPITOL DROPFILL SLIP CAP". a 14K gold nib. it is a leak free pen. I put a little silicone on the threads also, The feed channel & section have been ultrasonically cleaned and are very clear,with very good ink flow- you will get different results with different inks.
    $159.95
    Top Rated Plus
    $5.96 shipping
    Material: Ebonite
    or Best Offer
    Features: Gold Trim
    Guaranteed by Tue, Jun 25
    Vintage: Yes
  • NOODLERS CARDINAL DARKNESS AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    Only 1 left!
  • NOODLERS ARCTIC CORAL ACRYLIC NEPONSET PISTON FLEX NIB FOUNTAIN PEN

    The ink flow is consistent and generous from the three fissure ebonite music feed.
    $75.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • Noodler's Ink Ahab Flex Nib Fountain Pen Medieval Lapis NEW in Box 15027

    Fills via ink pump or can also be used as an eyedropper fill. • Nib: Stainless Flex Steel. Every item is covered by their respective manufacturer warranty. Check-Out Now!
    $26.50
    Top Rated Plus
    Free shipping
    Brand: Noodler's Ink
    Guaranteed by Tue, Jun 25
  • NOODLERS Fountain Pen - CLEAR STANDARD PISTON FILL FLEX NIB - #17000

    Fountain Pen. CLEAR STANDARD PISTON FILL FLEX NIB.
    $18.95
    Top Rated Plus
    Free shipping
    Brand: Noodler's
    Guaranteed by Tue, Jun 25
    67 sold
  • NOODLERS VICTORY GARDEN ACRYLIC NEPONSET PISTON FLEX NIB FOUNTAIN PEN

    The ink flow is consistent and generous from the three fissure ebonite music feed.
    $75.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    Only 1 left!
  • NOODLERS JADE AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • Noodler's Nib Creaper Standard Flex Fountain Pen - 17001 - Black

    It has a smaller barrel than the Konrad and features a smaller nib. Nib color: silver. Nib material: stainless steel. Nib size: M - 0.7mm. Ink is NOT included with this pen. Body Color: Black. Body material: Vegetal Resin.
    $16.10
    Brand: Noodler's Ink
    $2.99 shipping
    Guaranteed by Tue, Jun 25
  • NOODLERS LAPIS INFERNO AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • NOODLERS ZUNI AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • NOODLERS BENGAL TIGER ACRYLIC KONRAD PISTON FLEX NIB FOUNTAIN PEN

    The Konrad pen is 5 1/8”long with the cap closed. The blind cap (end of barrel) unscrews to reveal a twist button that operates an internal filling piston. The Konrad sports a large stainless steel Flex nib and matching cap accents.
    $40.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    Only 1 left!
  • NOODLERS PEARL WAMPUM AHAB PISTON FLEX NIB FOUNTAIN PEN

    The Ahab pen is 5½” long with the cap closed. Both band and clip sport the “Noodler’s Ink” identity. The large stainless steel nib is a Flex nib, and has a “Noodler’s Ink Co.” marking. The pen fills a large ink chamber with a plunger action allowing the use of any of Noodler’s many inks.
    $23.00
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
  • NOODLERS VULCANS CORAL STANDARD PISTON FLEX NIB FOUNTAIN PEN

    The nib feeds more ink as it is flexed - the "auto-vent flex" opens the air passage to the feed far more than a conventional nib is capable of. Slower writing may be necessary if one is writing Victorian style script vs. fine shorthand - which can be written more rapidly.
    $16.10
    Brand: Noodler's
    or Best Offer
    FAST 'N FREE
    Only 1 left!

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Flex Nib Fountain Pens

Use of a flexible fountain pen presents your hand scribed work with a touch of style and panache, which you just don’t get with a ballpoint pen. If you have an interest in calligraphy as a hobby or a profession or are avintage fountain pencollector, you’ll know that fountain pens are smooth flowing and easy to hold and use. Flexible nib fountain pens allow you to skillfully control and vary the line width as you write and are ideal for embellishing the presentation of hand-crafted lettering.

Where Can You Use Flex Nib Fountain Pens?

Many differently shaped fountain pen nibs for a range of uses and techniques have been around since they were first invented to replace feather quills and reed pens a few centuries ago.

  • Decorative writing – decorative writing, from calligraphy to handwritten fonts, usually comes from using softer or flexible nibs. Variations in technique and pressure allow the user to create the different line widths needed. Flexible fountain pen nibs come to the fore in the decorative styled script.
  • General writing – fountain pens for general daily writing, for example, letters, diaries, and documents usually have a hard stub or pointed nib that is more rigid. This creates a more uniform and consistent flow of ink.

What Are the Features of Flex Nib Fountain Pens?

Fountain pens come in a range of sizes and designs. Most modern manufacturers make nibs that will flex. If you're looking for replacement fountain pen nibs, some key points to look for are:

  • Basic widths of flex nibs create the flow ofthe ink that results in the width of lines.
    • Extra-fine (EF) results in a line of approximately 0. 2mm-0. 4mm wide
    • Fine (F) results in a line of approximately 0. 3mm-0. 05 mm wide
    • Medium (M) results in a line of approximately 0. 5mm-0. 8 mm wide
    • Broad or Bold (B) results in a line of approximately 0. 8mm-1. 0 mm wide
  • Durable metals such as gold or stainless steel alloys create the nib, or writing point, at end of the pen.
  • The outer casings of flex nib pens are available in a range of color options. A classic look is black with a gold trim, or silver with a chrome trim.
  • Replacement nibs are available for flex fountain pens including a variety of nib sizes and types
  • Other accessories you may need are ink, clips, paper, and cases.

Who Makes Flex Nib Fountain Pens?

There are many manufacturers of flex nib fountain pens from low cost to luxury. Some of the popular and well-known brands include Lamy and Caran d'Ache, Parkers andNoodlers Calligraphy and Fountain Pensat the lower end of the price range. For vintage fountain pens collectibles, look for brands like Schaeffer, Parker, and Waterman come originally from the USA.

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