HYXXYY 304 Seamless Welding Stainless Steel Rings 3" Metal O-Ring, Heavy Duty Smooth Solid Multi-Purpose Ring for Crafts, 5/16" x 2.36" (8mm x 60mm), 2 Pack: Amazon.com: Tools & Home Improvement
50mm ID x 60mm OD x 5mm thick O-ring. Buna-70. Quan 1. | eBay
60x8 Oring 60mm Id X 8mm Cs Nbr Nitrile O Ring O-ring Sealing Rubber - Oil Seals & Other Seals - AliExpress
1-60MM CAM PLUG O' RING | Brad Anderson Enterprises