Material: Shower door roller made of nylon and copper, sturdy and durable, stable quality and ve a long service life. The wear-resistant wheels are smooth and low noise sliding. Size: wheel diameter: 25 mm, wheel thickness: 5.5 mm, total length: approx. 33 mm. Suitable for: glass door thickness: 4-6 mm. Glass hole size: 10-12 mm. Wide application: shower cabin - Replacement rollers for shower cabins and massage cabins, bathrooms, jacuzzis and even for furniture fittings. With our shower rollers, the 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. Specifications: Product Name: Shower Sliding Door Rollers/Shower Roller/Shower Door Runners/Shower Door Rollers Material: Nylon and Copper. Wheel Diameter: 25mm - Wheel Thickness: 5.5mm - Total Length: About 33mm. Glass Thickness: 4-6mm. Hole: 10-12mm Suitable for most shower enclosures. Replacement rollers for shower enclosures and steam cabins. Package Content: 8 x 25mm Shower Door Rollers. LRFR is committed to providing each customer with the highest quality of customer service. possible.