Shower Door Rollers, Sliding Shower Doors Wheels Replacement Roller Runner Wheel Shower Doors Rollers; Shower Door Rollers: 23mm(dia) wheel top bottom shower door rollers, plated surface, rustproof; fit for thickness of 4-6mm glass door, glass open-hole of 10-12mm.(recommend for glass hole of 11-12mm, not fit for under 10mm) These replacement shower door roller is suitable for most shower enclosures, shower cabins and steam cabin enclosures, installed on the top and bottom of shower door, to make it easy to open and close. No Noise to open the shower door and these glass door roller help it slide smoothly. It is easy to Install and Maintenance. color: blue Size: Diameter 23mm Quantity delivered: 4 pieces Warm prompt: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding 3. Only the above package contents, excluding other products.Products from He Wei"s store When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!