The Design House 753434 Cambridge 2-Way Dummy Door Knob is finished in oil-rubbed bronze and designed for left or right-hand doors. The flat ball handle fits comfortably in your hand, and the oil-rubbed bronze finish matches your homefoots decor. This knob fits doors 1-3/8 inches to 1-3/4 inches thick. The knob is reversible for right or left-hand doors. This knob fits the two most common backsets in the U.S. (2-3/4 inches and 2-3/8 inches).