Usage Tips:Comprehensive Set: The package includes 2 sets of gaskets, comprising 2 piston gaskets and 4 sealing rings in various sizes, you have ample replacements . : The leather cuff piston sleeves are designed to fit most model 75 water pumps seamlessly. For- Materials: Made from quality Leather and Silicone, these seal rings are sturdy, to breaking, deformation, and fading, long-term reliability for your pump. User-Friendly Installation: Soaking piston seals in water prior to installation makes it easier to attach them to pump securely, enhancing your overall experience. Efficient Replacement: These hand water pump parts are designed for easy installation and provide excellent sealing capabilities, allowing your water pump to function effectively again while saving you time and effort. Color:As Shown Material:cow leather + Silicone Package Contents: 2 * leather cuffs 4 * sealing rings (2 sizes) Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.