General description Replace your old and rusty roller for your sliding glass shower door with these 23mm Shower Door Rollers. Designed for both curved shower doors and sliding doors, these wheels ensure smoother operation, making it easier to push and pull your bathroom door. Technical specifications Diameter of wheels: 23mm Thickness of wheels: 5.7mm Total length: approx. 32mm Glass door hole openings: 10~12mm (10mm recommended) Thickness of glass: 5-6mm Material: Nylon and copper plastic alloy Features: Good elasticity and wear resistance Installation Requires a screwdriver for repair Please ensure the size of your old roller and the diameter of the glass hole before purchase