Product Details:

Oval Edge Nylon 3/4" (19 mm) Wheel
For 3/16" (5 mm) Thick Tempered Glass Doors

3/4" Sliding Shower Door Roller and Bracket has an oval edge nylon wheel, steel ball bearing inner-race, two-part extruded aluminum bracket that clamps to the top of 3/16 inch (5 millimeter) thick frameless glass door panels.

Wheel Diameter: 3/4" (19 mm)
Fits Glass: 3/16 in (5 mm)

Minimum Order: 1 Package (two rollers per package)