Usage Tips:Feature: 1. Easy To Install: This D ring rivet is easy to install and remove because they come with a 360 degree rotatable D ring, you need to use a hole punch to punch a hole in the craft, insert the stud screw into the hole, and then simply tighten the screw on the base. 2. Excellent Zinc Alloy Material: This button ball studs rivet is made of excellent zinc alloy material, with fine workmanship, not easy to wear or rust, not easy to fade, long lasting and rugged, can withstand daily use. 3. Multifunctional: This metal rivets ball stud is multifunctional and suitable for you to make your own personalized accessories, you can insert them into backpacks or other storage pockets, connect the chain to make your bag better to carry. 4. Compact And Lightweight: This metal rivet button ball stud has a size of 16 x 9.5mm, which is small in size and light in weight, and very convenient to carry around with you and use it. 5. Wide Application: This D ring stud rivet has a wide range of applications, which can be used for handmade, leather, handbag making, pants, belts and so on, it is very practical and has a fashionable and good looking appearance. Specification: Item Type: D Ring Rivet Material: Zinc Alloy, Iron Use: D ring rivets can be used for handbags, pet collars, leather jackets, wallets, leather pants, backpacks, hats.. Package List: 20 x D Ring Rivets (Screw Included)