Moisture Resistant MaterialThe shower door roller is made of ABS plastic and stainless steel. Aluminum alloy reinforced connecting rod, strong support, can be used for a long time in a humid environment, no rust, corrosion resistance, strength and durability, long service life. Quiet and wear-resistant castersThe bearing is flat and smooth, and the door can be moved easily by gently pulling the door. There is no noise when moving, very quiet and will not cause noise in your life. Suitable for 11mm glass mounting holesThe shower door roller has a diameter of 23mm, which is suitable for glass doors with a thickness of about 4-6mm and is compatible with the 11mm diameter glass installation holes. Easy to InstallThis shower door roller is very easy to install. We have included a screw and a nut. You just need to align the roller with the glass mounting hole and use a screwdriver to tighten the screws. The included nut protects the screw from moisture and reduces rust. Good helper for bathroom doorIf you have installed a glass door in your home, don't miss this sliding door. It is a good helper for bathroom sliding door, helping you open and close the door better. Suitable for shower rooms, massage cabinets, bathrooms, massage bathtubs, etc.