CRL SDK410CR Crystal/Chrome Back-to-Back Glass Shower Door Knob

This Glass Knob provides a clean and transparent look, as it blends the Knob and door together for a see-through appearance. It has a chrome insert for added beauty. Knob diameter is 1-3/16″ (30 mm), and it protrudes 1-11/16″ (43 mm) from the glass.
SPECIFICATIONS:
Material: Glass, Chrome Plated Brass
Glass Thickness Range: 1/4″ to 1/2″ (6 to 12 mm)
Hole Diameter Required: 3/8″ (10 mm)