This American Standard OEM Flush Valve Seal kit includes all the necessary items for easy installation and maintenance of your toilet. The kit includes a thumscrew, chain PIN ASSEMBLY, and a Flush Valve that fits seamlessly with your toilet. The transparent color of the kit complements any bathroom décor and the rubber material ensures durability. This kit is compatible with American Standard toilet models and is shipped with a weight of 3.52 ounces. It is a perfect solution for replacing old or worn out flush valve seals. Get this Flush Valve Seal kit to keep your toilet functioning efficiently.