Item Type: Marine Grade O?Ring_x000D_ Product Material: Stainless Steel_x000D_ Product Specifications: Approx. 7 x 40mm / 0.28 x 1.57in , Approx. 7 x 50mm / 0.28 x 2.0in_x000D_ Product Parameters:_x000D_ SmmH mmkgkg _x000D_ 7mm 40mm 800kg 3200kg_x000D_ 7mm 50mm 800kg 3200kg_x000D_ _x000D_ Products Used: For Navigation, Diving, Boats and Outdoor Applications Under Harsh Conditions, Fitness Rings, Yoga Rings, Dog Rings, Luggage Accessories, Etc._x000D_ Diameter: Approx. 7mm / 0.28in 1High?precision polishing, elegant appearance, good welding, high strength, long?term use. 2304 Stainless Steel, antirust and corrosion resistant, can be used in outdoor humid environment. 3Burr?free, durable, will not fade easily, can be used repeatedly for a long time. 4Multifunctional O-rings can be used for many purposes, such as fitness rings, yoga rings, dog rings and luggage accessories. 5Suitable for sailing, diving and harsh outdoor conditions applications, can also be used for luggage, saddles,hammock yoga rings.1 x MarineGradeO?Ring