QUALITY: All rivets are made of iron and copper, not easy to deform and damage, the surface is smooth and don't scratch your hands. APPLICATIONS: These rivets can be applied for DIY craft as decoration,such as a wallet, backpack, shoes, clothing, jeans and so on. DIFFERENT SIZE AND COLORS: Because the color and material of each piece of clothing or leather are different, We matched 3 size and 4 colors cap rivet,so no matter how much clothes and lather you have,a rivet tool box will do all things. STORA BOX: The storage box is divided into 13 small grids, and each grid is placed with rivets of different sizes and colors, which is convenient for storage and placement without being too chaotic. ADDITIONAL TOOLS: there are 4 precision tools in box, it can be punched accurately according to the size of the rivet, which is easy to use and convenient. : Size: 6*6mm, 8*8mm, 8*12mm : gold, green , silver, gun black Type: Double Cap Rapid Rivets Material: Structure: 1 button surface + 1 nail, double-sided (2 parts as one set) Box specifications: 17.5*9.8*2.2cm Weight: 349g/box