Kwikset Dummy Knob, Design: Cove, Traditional, Matte Black, Commercial/Residential: Residential, Backset Size: 2-3/8 to 2-3/4 in, Door Thickness: 1-3/8 to 1-3/4 in, Zinc, Rose/Base Dimensions: 2-5/8 in, Knob Diameter: 2-3/16 in, Faceplate Size: 1 x 2-1/4 in, Includes: Screws, Screw Mounting, Door Handing: Left, RightFor use on interior doors where a push/pull function is requiredUniversal handing – fits both right handed and left handed doorsEasily installs in minutes with just a screwdriverMicroban antimicrobial product protection keeps door hardware 99.9% cleaner than unprotected surfaces