Description: - Made of good quality alloy, Study and durable to use. - Easy to install and remove, can be used repeatedly - Widely applicable for leather handicrafts decoration, decorating document, book, photo album, bookbinding, and other DIY crafts. - Perfect for decorating your bags, belts,handbags, leather bracelets, shoes, Hats, and All kind of art and DIY leather crafts. - Usage: these screw posts are easy for you to bind and remove, use a drill to punch a 5 mm diameter hole, then install the screws. Size Chart: Rivet diameter: Approx. 10mm / 0.39inch Rivet Tube Height: Approx.5mm / 0.20inch Package Includes: 10 Sets Posts Binding Screws Rivets Note: Please allow a little size error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.