1.Package Includes: 300 sets of double cap rivets with 75*Gold (25 each for 3 sizes), 75*Silver (25 each for 3 sizes), 75*Brown (25 each for 3 sizes), 75*Black (25 each for 3 sizes); 1 * double head rubber mallet, 1 * anti-slip punch, 1 * rivet bars, 1 * rivet base, various options 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 material thickness, fits tightly into the fabric, leather, suitable for clothing, belts, hats, fabric, DIY crafts, etc.3.Installation Tools: The leather rivet set includes 4 setting tools for fastening and perforating 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 and shiny, durable. The packaging of the double head rivet kit is a transparent plastic box, and the rivets and fastening tools of different sizes and colors are packed in compartments, which are easy to access and not easy to be confused.5.Wide Application: There are many kinds of metal rivets and rivet installation tools for different needs, suitable for DIY leather crafts, clothing, shoes, bags, decorations, etc. Gift for craft lovers.