Two Sponge Gaskets And Three Sets Of Brass Hardware Kits Are Included In The 3 Sets Brass Hardware Kits 1.This gasket seals the toilet tank to the bowl 2.Including Bolts, screws and two gaskets are what you need to install 3.Made of Stainless plating brass; Sponge Rubber material 4.High quality rubber seal 5.Durable construction, Easy to install 6.Including Bolts, screws and gaskets are what you need to install Package including:1 PC of 2 inch Sponge Gasket1 PC of 3 inch Sponge Gasket3 Sets of brass bolts with hardware 1.Tank to Bowl Coupling Kits: Universal Tank-to-Bowl gasket replacements with tank to bowl bolts. 2.Including 2"-3" Flush Valve Opening: Including 2-3 inch Tank to Bowl Gasket and Hardware Kit is universal,you can choose one between these. 3.Tank To Bowl Bolts: The included hardware kits are brass to ensure long lasting. Special designed extra long nuts are for easy installation, bolts are made from stainless plating brass,anti-corrosion, anti-rust better then fine copper. 4.Longest Lasting Materials: Tank-to-bowl gasket made from long lasting sponge rubber construction. 5.Easy to install: Including totally 3 sets toilet tank to bowl bolts and 2 size of gaskets(3 inch +3.5 inch) for fit flush valve opening.