Octagonal clear glass doorknobs. High quality pressed glass knobs with solid brass bases. Rim of brass base folds over base of glass knob for secure grip. Silver foil under glass amplifies reflected light to show beautiful facets. Set includes 2 knobs, steel spindle and an Allen (hex) key for set-screw adjustment. The base of the knobs have a polished nickel finish.. Clear glass knob: 2-1/4" dia. Bottom diameter of base: .61".