Set of 4 double rollers made of solid zinc alloy, 23 mm diameter, for shower cubicles, shower rooms, and shower screens

Roller material: Solid zinc alloy with plastic casing. Wheel diameter: 23 mm. Wheel thickness: 5 mm. Important before installation: A. Suitable for glass B. 4-6 mm thick. The glass opening diameter must be greater than 12 mm. 23 mm diameter wheels can be placed in the shower enclosure rail. D. The spacing of the upper wheel opening upwards must be less than 12 mm. To fit a maximum glass thickness of 4-6 mm and a minimum glass opening size greater than 12 mm. For glass thicknesses greater than 4 mm, we suggest not using the grey plastic washer for assembly, as it will not have enough space to secure it firmly. DIY Replacement: This replacement door knob is easy and convenient to install yourself. You can simply remove it with a screwdriver and replace it with new rollers on your glass doors. Package Contents: 4 shower door rollers (2 top rollers and 2 bottom rollers).