CRAFTMEmore Non-Welded O Ring Quality Finish Metal O Rings for Bags Belts Leathercraft Available 4 Sizes Pack of 10 (3/4 Inch, Gunmetal) Go to amazon.com Related posts Top o ring 25mm FeatureA ) Inner size: 1/2" (12 mm) Thickness: 3 mmB ) Inner size: 5/8" (15 mm) Thickness: 3.5 mmC ) Inner size: 3/4" (20 mm) Thickness: 4 mmD ) Inner size: 1" (25 mm) Thickness: 4 mmPackage quantity : 10 pieces DescriptionSee Seller Information >> CRAFTMEmore's Storefront on Amazon for more Bag & Leather Craft Accessories!!