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 ensuring the strength of the shower door roll, the plastic alloy significantly reduces the possibility of glass breakage due to the collision. Characteristics: The shower roller is 6mm wide, and the diameter of the single wheel is 23mm. Replace the shower door roll.These shower door casters are easy to slide and are designed for 4-8mm glass doors.The structure of the shower door caster is made of brass and plastic. The surface of the veneer is waterproof and durable.10 to 14 mm glass hole.The minimum diameter of the hole is 10 mm, and the distance between the center of the fixed hole and the edge of the glass is 14 mm.Each pair of rollers is co...