Comprehensive set includes 6 leather cuffs and 12 rubber sealing rings in 2 sizes for ample replacements. with an inner diameter of approximately 52 mm, height of 20 mm, and thickness of 4 mm for seamless compatibility with most model 75 water pumps. Made from quality cowhide leather and silica gel, ensuring durability and resistance to breaking, deformation, and fading. User-friendly installation by soaking piston seals in water prior to attachment for secure fitting. Efficient replacement parts designed for easy installation and excellent sealing capabilities, enhancing pump functionality. This product is designed to provide reliable and effective sealing for your water pump, ensuring long-term performance. The combination of high-quality materials and thoughtful design makes it an ideal choice for maintaining your pump's efficiency. Enjoy a hassle-free installation process and the peace of mind that comes with , well-made components. Color: As Shown Material: PU Package Contents: 6 leather bowls 6 sets of rubber mats (6 small + 6 large) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.