Shower Door Rollers, 23mm Wheels for Top or Bottom Installation in Bathroom Enclosure with Glass Door (23mm/2 top + 2 bottom)

"Package includes: 4x Zinc Alloy Double Shower Door Rollers (2 double top + 2 double bottom)

The roller's glass hole diameter >12mm (0.47in) can be used.

These rollers are suitable for glass where the distance between the center of the mounting hole and the edge of the glass is <12mm (0.47in).

Glass thickness: 4-8mm (0.15-0.31in). Wheel thickness: 6mm (0.23in). Diameter: 23mm (0.9in).

Constructed from a sturdy zinc alloy bracket, smooth ball bearing, and wear-resistant nylon wheel, with a chrome-plated surface treatment for corrosion resistance and rust protection."