The Fluidmaster 6106 Universal Tank-to-Bowl Gasket and hardware kit has everything needed to seal your tank to bowl Easy to install, for use with 2” flush valve toilets Universal fit for close-coupled toilets with round, or hex shaped flush valve nuts Durable build from high quality sponge rubber for a long lifespan Includes: toilet gasket, 3 brass bolts, stainless steel washers and nuts, plastic washers Solid brass bolts to resist rust and corrosion (5/16” x 2 3/4” length) 1 year warranty