This knob measures 1 3/8 Inch by 2 5/16 Inch with a projection of 2 1/2 inches. The solid brass plate measures 3 inches by 16 1/2 inches. Comes with mounting hardware. The dummy door knob is a fixed knob with double rosettes and is commonly used on French-style or bi-fold doors. This style is available as a 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 inch back set latch, or you can request a 2 3/4 inch back set at no extra charge. This product comes as an unlacquered natural brass and it will patina over time. A high strength lacquer coating is available upon request at an additional cost. This particular product has a lead time of approximately 5 to 10 business days.