The Design House 753251 Cambridge 2-Way Dummy Door Knob is finished in polished brass and designed for left or right hand doors. The flat ball handle fits comfortably in your hand and the brass finish matches your homefoots decor. This knob fits doors 1-3/8-inches to 1-3/4-inches thick. The lock has a reversible handle for right or left hand doors. This knob fits the two most common backsets in the U.S. (2-3/4-inch and 2-3/8-inch). It is UL listed for use on fire doors to ensure the highest quality. Designed and manufactured by Design House, the trusted source for quality lighting, hardware, plumbing, kitchen, and bath products for every taste and budget.