Kwikset Signature Entry Knob Set, Knob Handle, Matte, Zinc, Keyway Type: SC1, KW1, Re-Key Technology: SmartKey, Commercial/Residential: Residential, Security Grade: AAA, Black, Door Handing: Universal, Includes: (2) Keys, Design: Pismo, Number of Cylinders: 1, Door Thickness: 1-3/8 to 1-3/4 in, Backset Type: Adjustable, Backset Size: 2-3/8 to 2-3/4 in, Edge Bore Diameter: 1 in, Cross Bore Diameter: 2-1/8 in, Projection Size: 2-6/7 in