There's nothing wrong with the little plastic barrel adjusters that come stock on our Klampers. But, you know, we're machinist nerds, and we thought a mini version of our big Groovy Barrel Adjuster would look and function EXTRA nice on the Klamper, especially when you color-match the ano to the other bling on your bike. These also fit any of our other parts with a mini barrel adjuster, like Funky Monkey Cable Hangers, Dropper Triggers, Cross Levers, E-Levers, and Thumbies. Technical Information: - Threading: M5x0.8 - Weight: 3g Alloy / 9g Brass (Each)