Nylon and copper - Good elasticity, good wear resistance Cost effective - Set of 8 rolls, multiple replacements, spare parts in one order Measure - Wheel diameter - 27mm. A perfect replacement - Over time the rollers need to be replaced. Only a screwdriver is additionally required for the 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 Shower door rollers Replacement rollers < p>27mm shower door rollers rollers d 8pcs shower door rollers 27mm shower roller Replace a broken bearing Guides for Shower Door Track Supplied with screw caps. Spring mechanism, also compatible with curved doors. With screws and plastic covers Single shower door rollers/slides/wheels/pulleys Door roller replacement shower Suitable for most shower enclosures Suitable for most shower enclosures, shower enclosures and steam cubicles < /p> Easy to implement. Solid article and perfect design absolutely corresponding to the exchange of defective shower door rollers. Product identical to the original