Just as described, this kit cleans up and moves out clogs made from ink in Koh-I-Noor pen nibs. My size 4x0 pen was clogged. I unscrewed the parts of the pen and inserted the tip into the bulb neck. It fit. I dipped the nib into the cleaning solution and pumped the bulb. Solution went in and out of the nib. I was not able to clear the clogged ink but I soaked the nib in some cleaning solution and am hoping that will do the trick. The bulb works as advertised; the directions say that soaking may be required to clear some clogs.
Verified purchase: Yes | Condition: New
The fluid goes quickly, not really too useful, but some of us will buy anything. Ammonia works as well as a replacement.
Verified purchase: Yes | Condition: New
works well, would buy again.
Verified purchase: Yes | Condition: New
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