[What You Get] - You will receive 10 pcs brass rivets in 9mm x 3.3mm x 14mm/0.35\" x 0.13\" x 0.55\" (OD*Pin Dia.*H) and 10 pcs brass washers in 9mm x 3mm x 0.9mm/0.35\" x 0.12\" x 0.035\" (OD*ID*T). No more or 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 properties, and is not easy to break. The matching washers can make the installation much tighter to ensure long-lasting strength and support. [Fastening Function] - Brass rivet and washer 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 hammer-in 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 to flatten or round the tail. Some rivet and washer may also require a hole punch to create a hole in the material before installation. (Installation tools are not included.) [Versatile Applications] - Use these rivets to make, 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.