This is a clone of a popular OEM part, best known for Moog synthesizers, but can be used for guitar pedals, amps, etc.

About 29mm (1 1/8 inch) diameter at the base and 16mm (5/8 inch) tall. Uses a single 1.6mm (1/16 inch) Allen key screw to fasten onto a 6.35mm (1/4 inch) potentiometer shaft. 

Not for the *perfection police.* These knobs are all about vibe and function—not flawless beauty contests. Just a heads-up if your gear is designed to be admired at eye level—embrace the character!

You get one!