Nylon and copper - Good elasticity, good wear resistance Cost-effective - 8 roller set, multiple replacements, spare parts in one order Measure - Wheel diameter - 27mm, wheel thickness: 5.5mm, total length: approx. 32 mm A perfect replacement - Over time, the rollers need to be replaced. Only a screwdriver is required additionally for repair Suitable for - For glass door openings: 10~12mm; 12mm recommended. Thickness: 4-6mm. For shower doors and massage cabins, bathtubs, jacuzzi or any other furniture Replace a bearing that has broken Shower Door Rail Guides Delivered with screw covers. Spring mechanism, also compatible with curved doors. With screws and plastic covers Single shower door rollers/slides/wheels/pulleys Replacement shower door roller Suitable for most shower cubicles Suitable for most shower partitions, shower cubicles and steam cabins Casters for Shower Door, Shower Cabin Casters for Bathroom Delivered quantity: 8 pieces (27mm) Note: The data is manual measurement, please allow an error of 1-163cm, due to differences between the light and screen, there will be a certain color difference, the specific received in kind shall prevail.