1. [Package Includes]: 240 sets double cap rivets with 60 * gold (20 each for 3 sizes), 60 * silver (20 each for 3 sizes), 60 * brown (20 each for 3 sizes), 60 * black (20 each for 3 sizes); 1 * double-headed rubber mallet, 1 * non-slip awl, 1 * rivet bars, 1 * rivet base, various options for you to choose from. 2. [Various Sizes]: Leather rivets in 3 different sizes: 6 x 6 mm, 8 x 8 mm, 8 x 12 mm, available for different thickness of material, perfectly match with fabric, leather, suitable for clothing, belts, hats, cloth, crafts, etc. 3. [Installation Tools]: The leather rivet set includes 4 installation tools for fixing and punching leather. One of the rubber hammers is double-sided with a rubber handle for a comfortable grip and reduced vibration.4.[Material]: The rivets are made of metal, the surface is smooth, shiny and durable. The packaging of the double-headed rivet kit is a transparent plastic box, and the rivets and fixing tools of different sizes and colors are packed in compartments that are easy to access and not easy to confuse.5.[Wide Application]: There are many kinds of metal rivets and rivet installation tools for different needs, suitable for leather crafts, clothing, shoes, bags, decorations, etc. Gift for craft lovers.