Mechanical Keyboard Enhancement Kit A1 is the perfect accessory kit for your mechanical keyboard. It features 5 frost white ABS material keycaps for keyboard customization a keycap puller for easy cap switching a brush for cleaning and 110 sound dampening o-rings for quieter typing. Keycaps Customize your keyboard with the 5 frost white keycaps. Mark out your game controls and get an extra impactful effect on LED illuminated keyboards. Keycap Puller Remove and switch your keycaps easily and safely with the keycap puller. Sound Dampening O-Rings Place the o-rings on the backside of your keycaps and make your mechanical keyboard quieter for both yourself and those around you. The o-rings are compatible with all mechanical keyboards using Cherry MX Kailh Outemu Flaretech or equivalent switch designs. Cleaning Brush Over time your keyboard has to put up with a lot. Keep it clean with the included cleaning brush.