General description Shower door wheels of 27 mm: replace old rusty rollers to repair your glass door and ensure smooth sliding. Technical specifications Wheel diameter: 27 mm Wheel thickness: 5.55 mm Required glass door hole diameter: 10 to 12 mm Required glass door thickness: 6 mm Material: nylon and copper Compatibility and accessories Compatible with shower doors, massage cabins, bathtubs, jacuzzis, or any other furniture. Installation Before installing the shower door wheels, apply silicone grease (packaging not included) on the surface of the glass door rollers to extend their lifespan.