This is just a simple LED colour changer that fits onto a Cherry MX LED switch. Works best with white LEDs on the switches, that way you can get any colour you want! These were printed at 0.2mm in PLA on masking tape Depending on how your first layer gets squished it is probably necessary to trim off the excess (you can see the excess in the image that shows them installed on the switches). If you dont do this there may be some interference with the keycaps.