【Wide Application】Replacement Shower Door Rollers---For shower doors and massage cabins, bathtubs, or any other furniture fittings. Suitable for most Shower Enclosures, Shower Cabins and Steam Cabin Enclosures. 【Size】Shower Door Wheels---Set of 8 rollers. Over time, the rollers need to be replaced. A Perfect Spare/Replacement. Diameter of the wheel: 20mm; wheel thickness: 5.5mm. Suitable for 4-6 mm glass thickness. Total length: approx. 33 mm. For Glass Door Openings:10~12mm; 12mm recommended. Thickness: 4-6 mm. 【Noiseless】Shower Wheels---No Noise to open the shower door and these glass door roller help it slide smoothly. It is easy to Install and Maintenance. 【Material】Curved Shower Door Rollers---Made of Nylon, plastic and stainless steel material, good Elasticity, Good wear resistan, corrosion resistance, rust prevention and has a long service life. 【Easy to Replace】Shower Roller Wheels---Installed on the top and bottom of shower door, to make it easy to open and close. It is easy and convenient for this door knob DIY replacement; you can simply disassemble it by screwdriver and replace with new rollers on glass doors., Weight: 0.0881849048 Pounds, Manufacturer: Duokon