You can receive 12pcs 2"/50mm o rings in silver with 2" inner diameter and 3.8mm wire diameter. Metal o-ring have great adaptability, you can use them with d-rings, tri-glide sliders, or then metal side buckle for DIY projects. Metal rings are made of high quality metal, smooth surface, corrosion resistant and can be used for a long time. O rings are great and suitable for indoor and outdoor use for purse, straps, bag, backpacks, collars, webbing, leashes, and more. About some problems on the product, you can contact us at any time, we will provide you with the best service and solve the problem for you. 12Pack 2" O Rings Metal Buckle Loops Crafts Purse Bag Webbing Strap Backpack Making Dog Leash Collar Hardware (Large, Silver)