Quality Bolt Material: The toilet tank bolts are made of high-quality stainless steel, which are not easy to rust even after long-term contact with water in the tank, ensuring durability. Precise Size:Bolt length 72mm/2.83in, Conical rubber gasket diameter 26.5mm/1.04in, brass flat washer diameter 18mm/0.71in. Suitable for most of the connection between toilet tank and toilet bowl, more durable and pressure-resistant. Performance: The rubber gasket prevents leaks and protects toilet parts from damage. Extra long nut prevents shifting and provides better stability. Simple Installation：The toilet tank replacement kit is designed humanized, even in a narrow space, you can use household tools to quickly complete the installation, only a few minutes can be easily done, no need for professional skills. Package Includes:2 x Toilet Tank Bolt Kit (Gold). Kit includes 2 x brass bolts, 2 x tapered rubber washers, 4 x brass flat washers and 4 x short nuts.s, 2 flat rubber gaskets, 4 flat gaskets, 2 short nuts and 2 extra long nuts Quality Bolt Material: The toilet tank bolts are made of high-quality stainless steel, which are not easy to rust even after long-term contact with water in the tank, ensuring durability.