Description: DIY round head rivet , high-quality materials, so durable. Easy to install and show your special taste and unique character. It would be better to attach two pieces of leather or cloth together when using it. Great decoration for bags, leather, shoes, handbags, hats, phone shell etc. 40 pieces round head rivets in 2 different colors, you can use then for different purposes. Specification: Material: Copper Base Diameter: Approx. 8mm/0.31inch Package Includes: 40 Pieces DIY Round Head Rivets Note: Please allow a little measuring deviation due to manual measurement. (1cm=0.39inch) Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you