Design House 701995 C-Series 2-Way Adjustable Privacy Door Handle, Satin Chrome Finished in Satin Chrome and designed for left or right hand doors ANSI grade-2 certified for commercial security; UL listed for use on fire doors (3 hours) Fits 2-3/4-inch and 2-3/8-Inch backsets; fits 1-3/8-Inch and 1-3/4-inch thick doors Privacy lock; locks from the inside with a turn-button and feature clearance hole on outside knob/lever to permit emergency release with a nail or like object Comes with a limited lifetime mechanical warranty and a 5-year finish warranty