Feature: 1. Use marine grade 304 stainless steel, with good strength and rust resistance, you can use round rings with confidence 2. After high‑precision polishing, the round rings has a glossy appearance, you don't have to worry about scratching your hands 3. Stainless steel O-rings, with exquisite workmanship and welded closed design, is a multi-functional tool that can be used for many purposes 4. Durable and corrosion resistant, the round rings are very suitable as a component of luggage, saddle, hammock yoga rings 5. Has good practicability and is very suitable for sailing, diving and harsh outdoor conditions Specification: Item Type: Round Rings Welded Product Material: Stainless Steel Product Size: Diameter S (mm) / Center Distance H (mm) Approx. 3 x 15mm / 0.1 x 0.6in Approx. 3 x 20mm / 0.1 x 0.8in Approx. 3 x 25mm / 0.1 x 1.0in Products Used In: Navigation, Diving, Boats and Outdoor Applications Under Harsh Conditions, Fitness Rings, Yoga Rings, Dog Rings, Luggage Accessories, Etc. Package List: 5 x Round Rings Welded