Nylon and copper - Good elasticity, good resistance to wear Profitability - Set of 8 rollers, multiple replacements, spare parts in one order Measure - Wheel diameter - 25mm, wheel thickness: 5.5mm, total length: about 32mm< br />A perfect replacement - Over time the rollers need to be replaced. Only a screwdriver is needed additionally for the repair Suitable for - For glass door openings: 10~12mm; 12mm recommended. thickness: 4-6 mm. For shower doors and massage cubicles, bathtubs, jacuzzi or any other piece of furniture Replace a broken bearing Guides for Shower Door Rail Supplied with cover -screw. Mechanism to spring, also compatible with curved doors. With screws and plastic caps Single shower door rollers/sliders/wheels/pulleys Replacement shower door roller Suitable for most shower enclosures< /p> Suitable for; most shower enclosures, shower enclosures and cubicles; Steam Rollers for Shower Door,Rollers for Bathroom Shower Enclosure Easy Implementation Size: 25 mmColor: 8