Check the listing for details. 20PCS Silvery Cone Spikes Metallic Screw Back Studs Craft Cool Rivets Punk. Condition: New. Listed at 16.12 USD. Screw base diameter: approx 7mm /0.27 inch Style: cone spikes (with screw-back) Solid and practical in use, not easy to rust. You can use it to repairing broken belt and decorating your crafts. Decorate belts, windbreakers, down jackets, jackets, overalls, backpacks, shoes, hats, jeans, leather crafts, DIY crafts and so on. High strength and good durability. High hardness and not easy to deformation. Can be used for the album or book and other binding books. Has good property of wearproof and anti-corrosion. No pollution, environmental protection. Please keep them away from children to avoid choking by mistakes. Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer, monitor since monit.