Ball Style Door Knob Privacy Bed and Bath Lockset, US3 Polished Brass Finish (Privacy, Polished Brass) Bed and Bath Lockset - Turn lock on Interior knob Fits doors 1-3/8" to 1-3/4" thick Includes 2-3/8-Inch-2-3/4-Inch adjustable backset latch Meets ANSI Grade 3 security