Used to install toilet tank to bowl Contains 1pc tank to bowl rubber gasket; 3pcs Toilet Brass plated bolts, 6pcs toilet rubber reinforced washer, 6pcs brass bolt washer, 6pcs brass Hex Nuts this Toilet Tank-to-Bowl RUBBER Gasket with Brass plated bolts Includes everything needed to make a secure and watertight connection between toilet tank and toilet bowlIncluded gasket and components made of high quality material to provide years of uninterrupted useFits all two piece toilet standard, Easy to install, includes detailed installation instructions