Material: Shower door roller made of nylon and copper, sturdy and durable, stable in quality and have a long service life. the wear-resistant wheels are smooth and low sliding noise. Wide application: shower cabin - Replacement casters for shower cabins and massage cabins, bathrooms, jacuzzi and even for fittings of furniture. With our shower rollers, door and sliding systems can be easily and smoothly. Easy installation: Shower door rollers easy to move and install. For repair, only one screwdriver is needed. Size: wheel diameter: 25mm, wheel thickness: 5.5mm, total length: approx. 33 mm. Suitable for: glass door thickness: 4 to 6mm. Dimensions of the hole in the glass: 10-12 mm. <b>Specifications:</b> Product name: Sliding shower door rollers/shower roller/Shower door runners/shower door rollers Materials: nylon and copper. Wheel diameter: 25 mm - Wheel thickness: 5.5mm - Total length: approx. 33mm. Glass thickness: 4-6 mm. Hole: 10-12 mm Suitable for most shower enclosures. Replacement castors for shower enclosures and steam cabins. <b>Contents packaging:</b> 8 x 25mm shower door rollers.