Comprehensive Set: The package includes 2 sets of gaskets, comprising 2 piston gaskets and 4 sealing rings in various sizes, providing ample replacements. Compatibility: The leather cuff piston sleeves are designed to fit most model 75 water pumps seamlessly. Materials: Made from quality leather and silicone, these seal rings are sturdy, resistant to breaking, deformation, and fading, ensuring long-term reliability for your pump. User-Friendly Installation: Soaking piston seals in water prior to installation makes it easier to attach them to the 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 x leather cuffs, 4 x sealing rings (2 sizes) Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. The measurement allowed error is +/- 1-3 cm.