Silicone O-Ring - 2mm Wide 44mm ID - Pack of 10 - Walmart.com
D-Rings: O-Ring, 44mm, Dull Brass
44X2.5 Oring 44mm ID X 2.5mm CS EP EPM EPDM Ethylene Propylene IRHD 70 Black O ring Oring Sealing O ring Rubber|rubber back|rubber innerrubber swimwear - AliExpress