Cherry Mx Rubber O-rings 120pcs Switch Dampeners Dark Black Clear Red Blue Cherry Mx Keyboard Dampers Keycap O Ring Replace Part - Keyboards - AliExpress
Blue "O" rings set for A . Lantsov coaxial systems. 4 pcs (Full set ) - Pauzuolis RC Shop
15mm Rubber O-Rings (ID: 10mm) - choose color & quantity – Bead Me A Story