Design House 753301 Cambridge 2-Way Adjustable Passage Door Knob, Satin Nickel Designed for left or right hand doors ANSI grade-3 certified for residential security Fits 2-3/4-inch and 2-3/8-Inch backsets; fits 1-3/8-Inch and 1-3/4-inch thick doors Passage lock; no locking function; the knobs or levers freely operate the latch Comes with a limited lifetime mechanical warranty and a 5-year finish warranty