Description: Double Cap Rivets - 4 commonly used colors (gold, silver white, bronze, black) that will add retro and exquisite style to your leather crafts, total 240 sets 2 Assorted Sizes - Large size that the cap, post and base are all 8mm (5/16 inch); Small size that cap, post and base are all 6mm (1/4 inch). Please make sure that your fabric is not thicker than the rivet size Practical Setting Tools - the included punching tools and anvil ensure quick and easy installation even you're a new hand, you will quickly figure out how to use it by watching our guide video Wide Application - These leather rivets are useful accessories which can be applied for DIY leather crafts, repairing and decorating wristbands, hats, jeans, windbreakers, belts, shoes, sandals, down jackets, bags and so on Compact Storage Box - All rivets and tools are neatly placed in a clear storage box, so you can easily find the size and color you need Specification: Material: Metal Hole Puncher: 2.5mm/0.10 inch Package Includes: 240 Sets Double Cap Snap Button with Install Tool Note: Please allow slight 1-2mm difference due to manual measurement and a little color variation for different display setting.