High-quality materials: The leather shell is made of high-quality cowhide leather with good sealing performance, sufficient water absorption, and steam pressure resistance, ensuring fast flow. It is treated with wax and resists deformation even after prolonged exposure to water. Affordable set: The package includes 4 brown jug pump parts, providing ample quantity for daily use and replacement needs. Perfect size: The leather shell measures approximately 2 inches (5.3 cm) in diameter and 0.16 inches (4 mm) in thickness, compatible with model 75 water pump handle pumps. Suggestions for use: Soak the leather pump cup before use. Wetting the leather enhances elasticity and facilitates easier installation. Easy to use: These hand water pump parts are simple to install and provide reliable sealing, helping restore your water pump quickly and efficiently.