●[Compatibility] These toilet flush valve rubber gaskets are compatible with Siamp Skipper 45 Storm 33A toilet flush valve. ●[Size] These gaskets have an inner diameter of 24mm, an outer diameter of 72mm, and a thickness of 4mm. ●[Easy to Install] These toilet flush valve washers are easy to install and can replace damaged or aging gaskets and improve the sealing of the flush valve. ●[Durable Material] Made of soft and elastic rubber, these gaskets are durable and provide long-term performance and excellent sealing ability. ●[Package Includes] Included with every purchase are 2x replacement toilet flush valve washers, allowing you to replace the seal on your flush valve for more efficient flushing and water conservation.