This square style door knob set is designed from solid brass and features a modern style rosette. Measures 2 1/4 inches overall with a 2 5/8 inch projection. This knob set with fit any door thickness between a standard 1 3/8 inch to a 2 1/4 inch thick. Functional sets come complete with the functioning hardware and a 2 3/8 inch backset is standard. A 2 3/4 inch backset is also available upon request. This particular product has a lead time of approximately 3 to 5 business days.