ITEM NAME:12Pcs Ball Post with Ring Rivet Stud Round Head Screw Back for Leather Craft Description: Round Head Rivet with Ring Can be used to attach two pieces of leather together and they would work great. Use for decorating your bags, belts,handbags, leather bracelets, shoes, Hats, and All kind of art and DIY leather crafts. Material: Copper Base Diameter: Approx. 10 mm Specification: Total Size: Approx. 2.6 x 2cm/1.0 x 0.78 inch Package Includes: 12 Pieces Ring Rivets Note: Please allow a little size error due to manual measurement. Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the item's color may be slightly different from the pictures. Please understand..Round Head Rivet with Ring. Can be used to attach two pieces of leather together and they would work great. 12 Pieces Ring Rivets. Total Size: Approx.