[What You Get] - You will receive 10 pieces of brass rivets in 9mm x 3.3mm x 14mm/0.35\" x 0.13\" x 0.55\" (OD*Pin Dia.*H) and 10 pieces of brass washers in 9mm x 3mm x 0.9mm/0.35\" x 0.12\" x 0.035\" (OD*ID*T). Neither more nor less quantity, to meet your daily basic DIY or repair needs. [Material] - The solid rivet kit is made of brass, which has corrosion resistance, wear resistance, long-lasting durability and toughness, and is not easy to break. The matching washers can make the installation much tighter to ensure long-term strength and support. [Fastening Function] - Brass 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 secure the rivet in place, providing a robust and reliable fastening solution for a wide range of applications. [Easy Installation] - Easy to install with a hammer. 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 to flatten or round the tail. Some rivets and washers may also require a hole punch to create a hole in the material before installation. (Installation tools not included.) [Versatile Applications] - Use these rivets to craft, repair, or even decorate. 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.