About
The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its value is exactly 299,792,458 metres per second, a figure that is exact because the length of the metre is defined from this constant and the international standard for time.[1] This is approximately 186,282.4 miles per second, or about 671 million miles per hour
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Reviews (21)
Jan 31, 2018
Super extra cheap
Small screw to hold thing on place when trhu plastic frame holding nothing.
Waste of money.
Oct 20, 2022
Fantastic
For traveling , works great.
Value is the best
Shipping was near speed light
Dec 30, 2018
Not really adjustable tip
Construction is ok, in general good a product.
Nose IS NOT ADJUSTABLE, come fixed to base, NO SWIVEL like other models .The only adjustement is based on how far the nose comes out of sleeve, this is based on water pressure