Amazon.com: ThreeBulls 120Pcs Rubber O-Ring Switch Dampeners Keycap red for Cherry MX Key Switch Keyboards Dampers : Electronics
Cherry MX Rubber O-Rings 120Pcs Switch Dampeners Dark Black Clear Red – KPrepublic
Amazon.com: Griarrac Kailh Box Switch Tester Mechanical Keyboards Retooled Sampler 9-Key Switch Testing Tool, with Keycap Puller and 18 O Rings, Navy Jade White Red Black Brown Yellow Blue Orange Switches :