The Largo design is a vintage look that dates back to the Victorian time period. This polished brass finished lever knob is complemented with a lavishly decorated back plate that makes for an appealing piece of quality door hardware. The vintage design is paired with a tubular latch for trouble-free installation. The door knob measures 3 1/4 inches in diameter (approximate). While the back plate measures 8 1/4 inches tall with a 2 3/4 inch diameter. Latch case has a 7/8 inch diameter and a back plate measuring 2 1/4 inches tall with a one inch diameter. This knob set will fit a standard door thickness of 1 3/8 inch. This door knob set is available in several finishes and functions. Passage (Hall/Closet) and Privacy (Bed/Bath) sets come complete with the functioning hardware and a 2 3/8 inch back-set is standard. A 2 3/4 inch back-set is also available upon request. This particular product has a lead time of approximately 1 to 3 business days depending upon the chosen finish.