125pcs Keycaps O Ring Seal Switch Sound Dampeners For Cherry MX Keyboard Damper Replacement Noise Reduction Keyboard O-ring Seal - AliExpress
O Ring Dampeners for Mechanical Keyboards: Installation and Tests - YouTube
120Pcs Keycap Red O Ring Rubber Sound Dampeners Keyboard O-ring Switch Silencer Ring Buffer Sound Dampeners For Cherry MX Keyboard Damper Replacement Noise Reduction Seal (Free gift 1 key cap puller)