Shower Wheels are used to make the curved sliding glass screen shower door track replacement rollers wheels bearings. They are designed to work with glass that is 6.0mm thick. Replace the track on your shower door, and it will feel brand new, gliding open and closed with just fingertip touch. Shower Wheels are tested under various parameters to ensure its high quality and effectiveness. They are very effective as well as economical to use. They require very low maintenance costs.