Made for modern doors Victorian era splendor returns with the 2 in. (50 mm) diameter crystal and solid-brass construction door knob reminiscent of turn-of-the-century prosperity. Elegant in its simplicity, the practical door hardware is suitable for any room or makes a stunning, decorative accessory. The genuine crystal clear glass knob with standard rosette has a 2-1/8 in. (54 mm) projection and fits modern doors with a 2-1/8 in. bore hole. The attractive door knob shown has a polished brass finish but is also available in polished brass, brushed nickel, antique brass, oil rubbed bronze, and polished chrome. This style is available as double sided dummy knob (2 fixed knobs), functional passage (non-locking) and functional privacy (locking) sets. Functional door knobs come with a standard 2-3/8 in. back set, or you can request a 2-3/4 in. back set at no extra charge