The main body of the shower door wheel is made of galvanized plastic alloy, so there is no need to worry about rust. On the other hand, while the plastic alloy ensures the strength of the shower door roller, it greatly reduces the risk of glass breakage due to collision. Features: The shower roller is 6mm wide and the diameter of the single wheel is 23mm. Replace the shower door roller. These shower door rollers are easy to slide and are designed for 4-8mm glass doors. The structure of the shower door roller is made of brass and plastic. The fan surface is waterproof and durable. 10-14mm glass hole. The minimum hole diameter is 10mm and the distance from the center of the fixed hole to the edge of the glass is 14mm. Each pair of rollers is designed to be used together to produce stable and safe movement along the guide rail. A complete set of 4 wheels should be used for each sliding door or panel. Suitable for most shower rooms, shower rooms and steam rooms. Note: The glass hole is determined by the diameter and is the protruding part of the red circle. Due to manufacturing, there may be an error of 0.5-1mm. Bathroom door roller set: 4 double shower door rollers, including 2 upper rollers and 2 lower rollers. With 4 sets of anti-collision blocks and stainless steel screws. The shower rollers can be removed and cleaned with a single operation. Plating door rollers: 23mm diameter wheels, suitable for glass doors with a thickness of 4-6mm, the upper and lower wheels are suitable for glass openings of 12-14mm; the upper wheel can be adjusted with stainless steel screws to adjust the height to 8mm. The height of the lower wheel spring is automatically adjusted according to the height of the upper wheel. Smooth sliding and no noise: The shower room rollers are made of copper and electroplated plastic alloy materials, with strong supporting force, anti-rust plating surface, wear-resistant and can be used for a long time in a humid environment. The sliding door can be moved easily and there is no noise when moving. Applicable occasions: These shower door replacement rollers are suitable for most shower rooms, shower rooms and steam rooms and are installed on the top and bottom of the shower door for easy opening and closing. Easy to install: The double sliding shower door is easy to install. Confirm the roller size and glass hole diameter you want. Material: Brass and plastic. Color: Silver. Package includes: 4 shower door rollers. 4 anti-collision blocks. 4 stainless steel screws.