Description Mute Nylon Roller: No noise when opening the shower door, and this glass door roller helps you glide smoothly. Their high-quality white wheels fit perfectly into your shower. High-quality material: The material of the shower roll is copper, nylon, strong and durable, good wear resistance. Suitable for: These rollers fit 4-6mm glass shower doors. The diameter of the shower roller is 25mm, conveniently fits sliding glass doors. Easy to Use: The bathroom slide rail is easy to move and install. It can also move the door to save space. ApplicationThe universal design ensures they are suitable for most shower enclosures, shower cubicles and steam rooms.