Nylon and copper - Good elasticity, good wear resistance Profitability - Set of 8 rollers, several replacements, spare parts in one order Measure - Wheel diameter - 27mm, total length: about 30 mm replacement - Over time, the rollers need to be replaced. In addition, only a screwdriver is needed for the repair Suitable for - For glass door openings: 10 ~ 12mm; 12mm recommended. Thickness : 4-6 mm. For shower doors and massage cabins, bathtubs, jacuzzi or any other furniture Replace a bearing that had broken Guides for Shower Door Track Supplied 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 Fits most shower stalls Fits most shower screens , shower cubicles and steam cabin Shower Door Casters, Shower Enclosure Casters for Bathroom shower casters 23mm shower casters sliding shower door caster shower caster caster shower casing caster casters shower door shower roller shower door roller holder roller for sliding door roller shower door rollers for shower enclosure roller 19mm