You will receive 10 short copper rivets in 9 mm x 3.3 mm x 14 mm/0.35 inch x 0.13 inch x 0.55 inch (OD x Pin Dia. x H), 10 long copper rivets in 9 mm x 3.3 mm x 19 mm/0.35 inch x 0.13 inch x 0.75 inch (OD x Pin Dia. x H), 20 copper washers in 9 mm x 3.3 mm x 1 mm/0.35 inch x 0.13 inch x 0.039 inch (ODx ID x T) and 2 hole punch tools in 10 mm x 100 mm/0.39 inch x 3.94 inch (Dia. x H). Neither more nor less quantity to satisfy your daily basic DIY or repair needs. The solid rivet kit is made of copper, which has corrosion resistance, wear resistance, long-lasting durability and ductility and is not easy to break. The matching washers can make the installation much tighter to ensure long-lasting strength and support. Copper rivets and washers have a cylindrical shape with a head at one end and a tail at the other. The head sits on the surface of the material being fastened while the washer and tail are hammered down to fix the rivet in place to offer a robust and reliable fastening solution for a wide range of applications. Easy to install with hammer strike design. To create a firm grip, use a hammer to hammer the washer into place and cut off the extra pin length with pliers, then use a tool that flattens or rounds the tail. Some rivets and washers may also require a hole punch to create a hole in the material before installation. Use these rivets for crafts, repair or even decoration. They are perfect for leatherwork, handmade crafts and many other applications, such as making and repairing belts, bags, keychains, straps, wallets, jeans, shoes and other leather ornaments. Color: As shown Material: copper Package contents: 1 set * copper rivets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.