1、Made of 304 stainless steel, it is more rust-proof and durable than most of the 201 stainless steel rings on the market. 2、304 stainless steel waterproof, rust and corrosion resistant. 3、No solder joints on the interface, smooth surface without burrs. 4、Can be used for fitness rings, yoga rings, dog rings and luggage accessories. 5、A good replacement for your old or broken O ring, easy to change. Features: Made of 304 stainless steel, it is more rust-proof and durable than most of the 201 stainless steel rings on the market. 304 stainless steel waterproof, rust and corrosion resistant. No solder joints on the interface, smooth surface without burrs. Can be used for fitness rings, yoga rings, dog rings and luggage accessories. A good replacement for your old or broken O ring, easy to change. Specification: Condition: Brand New Material: Stainless Steel Color: Silver Size: (Optional) 08030: Line diameter 8mm* inner diameter 30mm 08045: Line diameter 8mm* inner diameter 45mm 08040: Line diameter 8mm* inner diameter 40mm 08035: Line diameter 8mm* inner diameter 35mm 08050: Line diameter 8mm* inner diameter 50mm 08060: Line diameter 8mm* inner diameter 60mm 08070: Line diameter 8mm* inner diameter 70mm 08080: Line diameter 8mm* inner diameter 80mm Weight: Approx. Approx. 110g Application: Pets, diving Package List: 1 * Stainless Steel O Ring