Check the listing for details. 8 Pieces Ball Post Head Button Studs with D Ring Screw Rivets, Gold, Black. Condition: New. Listed at 15.39 USD. Description[Material] - Made of zinc alloy with high hardness, no rust, wear resistance and corrosion resistance. With oil seal and polished finish, it can bring a smooth surface without scratches and dust, and water resistance.[Easy Setting] - Screw back designed and equipped with 360 degree rotatable D rings, this stud screw rivet are easy to install and remove. Punch a hole in the leather with punch, then pass the screw through the hole, cover the button stud and then tighten the screws with a screwdriver.[Wide Application] - Button studs rivets are widely used to attach any small straps and belts, such as backpacks, handbags, purses, shoulder bags, cross body bags, shoes, clothes, etc. It can also be used as DIY accessories and decorations.