The product has never been used, the packaging was damaged during transport. Unopened product, repacked in our warehouses, in perfect working condition, warranty available. Set of 8 shower door rollers: Consists of 4 upper rollers and 4 lower rollers, a total of 8 pieces; comes with screws and a plastic cover. Suitable for glass shower doors, shower enclosure doors, massage cabin doors or sliding furniture fittings. Shower enclosure roller material: Made of brass and ABS plastic, sturdy and durable. Size: Wheel size is approximately 23 mm in diameter, 6 mm in width; the maximum glass thickness is 6 mm. The distance from the center of the mounting hole to the edge of the glass is approximately 18 millimeters. Easy to slide: The bathroom slider is easy to move and install, keeps the door balanced and allows the door to slide with minimal effort. Product description 4 upper shower door rollers and 4 lower shower door rollers, with plastic cover. A practical accessory for glass shower door runners. Material: Brass shaft and ABS plastic, sturdy and durable. Roller size: The wheel diameter is approximately 23 mm, the thickness is approximately 6 mm; Suitable for glass thickness of 4-6 mm. The distance from the center of the mounting hole to the edge of the glass is approximately 18 mm. Shower door rollers 23 mm Adjustable: Upper shower rollers: 8 mm Lower shower rollers: self-adjusting Replacement rollers for sliding shower glass doors. Easy to slide: The bathroom runner is easy to move and install, keeps the door balanced and allows it to slide effortlessly. Easy to slide: The bathroom runner is easy to move and install, keeps the door balanced and allows it to slide with minimal effort. Shower enclosure rollers Application: Suitable for glass shower doors, shower enclosure doors, massage cabin doors or sliding furniture fittings. Scope of delivery: 4 upper shower door rollers 4 lower shower door rollers 8 plastic covers