Kitchen or bathroom cabinet antique glass knobs. Black milk (Opaque) glass knob with machine screw that slides through center of knob and held in with a plated nut. This little beauty is wonderful for cabinets or drawers. Each knob comes with two 2 1/2" long machine screws. Knobs measure 4 1/4" across and 3" between screw holes. Price is for each knob.