Thank you for viewing! This is a set of silent O-rings (rubber dampers) for mechanical keyboards. By attaching them under the keycaps, you can reduce the "clack" sound when bottoming out, making your typing quieter. ・Material: Silicone ・Color: Clear (Transparent) ・Size: Inner diameter approx. 5mm / Outer diameter approx. 8mm / Thickness approx. 1mm (Compatible with Cherry MX switches) ・Quantity: 120 pieces ・Compatibility: Cherry MX compatible switches The item will be shipped in an envelope, so I will ask for your address after purchase. ⸻ 【Recommended Points】 ・For remote work or late-night typing ・Also effective in reducing typing fatigue ・Easy to install! Just remove the keycaps and put them on If you have any questions, please feel free to ask in the comments. We look forward to your purchase.