Have you found yourself in a maze of twisty-turny knobs, all alike? These micro potentiometer (or rotary encoder) knobs offer a rainbow burst of color to your synth or control panel. Made of hard plastic with a grippy star shape sometimes referred to as "Davies 1900" style, these knobs may not be a perfect size/color match for original Davies knobs.The micro knobs work with any shaft type (round, D-shaft, or T18) because they come with a tiny set screw. Use a 2mm hex wrench (not included) to carefully tighten once placed.This is the Adafruit black version, and it comes in a pack of four.Features: Pack of four black micro potentiometer knobs Made of hard plastic with grippy star shape Compatible with round, D-shaft, or T18 shaft types Includes a tiny set screw for secure fit (requires 2mm hex wrench, not included) Technical Details: Diameter of top: 12mm / 0.4" Diameter of base: 12.7mm / 0.6" Height: 15.8mm Weight: 1.2g Dimensional Drawing