Shower Door Roller, 4 Double Rollers, Shower Door Sliding Rollers, Shower Enclosure Door Wheel Replacement - 2 Upper and 2 Lower Wheels✔Premium materials.The shower wheels are made of copper and galvanized plastic alloy, anti-rust, anti-corrosion, strong bearing force and can be used for a long time in humid environment.✔ Smooth gliding.By gently pulling on the door, the door can be moved easily.There is no noise when it moves, it is very quiet and does not make noise in your life.✔Easy installation.These shower mats are very easy to install.Supplied with anti-collision block and fixing screws.Simply align the rollers with the glass mounting holes and use tools to tighten the screws.✔ Wide range of applications.Shower wheel replacement is a good helper for bathroom sliding doors and helps you open and close the shower better.Suitable for most shower rooms and steam rooms.