1. Durability: The waterproof socket screws are made from carbon steel materials to ensure strength and durability. These screws are designed to withstand the toughest conditions, providing you with peace of mind during your rides. 2. Enhanced Performance: This accessory is equipped with waterproof screws, helping to prevent rust and ensure smoother operation. The bearing axle provides lubrication, contributing to improved wear resistance and smoother performance. 3. UserFriendly Design: The sealed bottom bracket is designed for easy installation and operation, delivering a seamless experience. Its lubrication allows for effortless integration into your cycle, enhancing overall efficiency. 4. Strength and Reliability: This product is crafted from metal materials, delivering both power and longlasting durability. It offers a reliable and resilient performance, ensuring it can withstand regular use.