Passage Function: Passage door hardware has no locking mechanism. Both the interior and exterior handles are always free making it perfect for hallways, closet doors, and anywhere else a lock is not needed. Passage door hardware can also be used in conjunction with a deadbolt to secure a back door or entrance. Features: Solid brass backplate with lead crystal door knob for detail and clarity Handing is reversible for left or right handed doors Perfect for restoration projects and easy to install on modern pre-drilled doors Includes a 2-3/4" backset and square corner latch Covered by a 5 year limited warranty Does not meet criteria of the American’s with Disabilities Act (ADA) Hand assembled in the United States Product Technologies: Solid Brass Construction: Nostalgic Warehouse backsets and rosettes are forged from a solid piece of brass. This process yields a denser, stronger and higher quality product that can better display intricate designs than casted door hardware. Genuine Crystal: Nostalgic Warehouse crystal knobs are constructed of at least 24% lead crystal. Crystal is both stronger and more reflective than glass; displaying a bright sparkle and rainbow prism effect. Specifications: Backset: 2-3/4" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-3/8" to 1-3/4" Handing: Reversible, Left or Right Knob Diameter: 2-1/4" Projection: 2-5/16" Rose Height: 6-3/4" Rose Width: 3" Latch Faceplate: Square Corner