Mont Hard Single Side Shower Door Knob in Brushed Nickel Finish for Frameless Heavy Glass Shower Doors Single Sided Cylindrical Shower Door knob Finish: Brushed Nickel Diameter: 3/4" ; Fits Frameless heavy glass shower doors from 1/4" to 1/2" thick Material: Solid Brass, 1-1/4 inch protrusion from the glass door. Includes Knobs and washers