8pcs Shower Door Rollers Set: Made of: Set including 4 top rollers and 4 bottom rollers, 8 pieces in total, with screws and plastic cover; Suitable for glass shower doors, bathroom doors, massage room doors or sliding furniture accessories. Shower roller material: made of brass and ABS plastic, sturdy and durable. Dimensions: The wheels measure approx. diameter 25mm, width 5mm; maximum glass thickness 6mm; the distance from the center of the mounting hole to the edge of the glass is approx. 18mm. EASY TO SLIDE: Bathroom sliders are easy to slide. move and play When installing, make sure that the door remains balanced and can be moved The door glides effortlessly. Product Description 4 upper shower door rollers and 4 lower shower door rollers with plastic covers. p> Practical accessories for sliding glass shower doors. Material: Brass post and ABS plastic, sturdy and durable. Roller size: The wheel diameter is about 23 mm and the thickness is about 6 mm; Suitable for glass thickness