Design House 741355 Ball 6-Way Universal Entry Door Knob, Oil Rubbed Bronze Reversible lever for right/left hand doors Fits doors 1-3/8-Inch to 1-3/4-Inch thick 2-3/8-Inch or 2-3/4-Inch backset Oil rubbed bronze finish ANSI Grade 3 Certified; UL Listed for use on fire doors (3 hours)