•A Set of 8 Pcs Single Shower Door Rollers (4 upper rollers and 4 bottom rollers).
•Diameter of the wheel:20MM
•Width of the wheel: 5mm. Minimum Hole size in the glass: 11mm. Maximum glass thickness: 6mm.
•Material: Plastic, Nylon, A Plastic, Nylon BS and stainless steel.
•Comes with screw cover caps. Spring loaded action can also fit curved showers. Designed with a nut and a plastic cover