- Package Includes: Set of 4 Twin Shower Door Rollers (2 top rollers and 2 bottom rollers). Designed for 14mm glass hole; not compatible with holes smaller than 12mm. - Durable and Rustproof: These electroplated rollers feature a 23mm diameter wheel, ensuring smooth operation while resisting rust and corrosion. Suitable for 4-6mm thick glass doors with a glass open-hole of 12-14mm. - Versatile Compatibility: Ideal for most shower enclosures, cabins, and steam rooms. These rollers make opening and closing your shower doors effortless, enhancing your shower experience. - Quiet and Smooth Operation: Designed to eliminate noise during use, these rollers glide seamlessly. They provide a maintenance-free solution for your shower door. - Easy Installation: The twin rollers are straightforward to install. Ensure you verify the roller size and the diameter of your glass hole before installation to guarantee a perfect fit. Use Scenarios: 1. Replace worn-out rollers in your shower enclosure to restore smooth functionality. 2. Upgrade your steam cabin door for quieter and more reliable operation. 3. Enhance the performance of your shower cabin doors, making daily routines more enjoyable and hassle-free.