O Rings Welded Strong Metal Multi-Purpose Heavy Duty Round Ring. Manufacturing Process: O rings are welded strong, after the electroplating process, smooth, good gloss and not easy to fade. Belts buckles rings are practical accessories for handmade crafting and sewing projects. Durable Material: Our multi-purpose buckle loop O rings are made of durable metal, sturdy, anti-rust, not easy to bend and long time for use. Widely Used: Wide application in all kind of hand DIY accessories: clothing, dog collars,dog seat protector, luggage straps, harnesses,purse, badge holders,handbag, backpack, belts, ect. Suitable for almost materials:paracord, leather, fabric, cotton, nylon, or webbing. Unlimited application, save your money.