Privacy Function(without keys) : The latch bolt can be locked by thumb turn button on the inside knob. Can be released exterior with coin or screwdriver or other flat piece of metal for emergency Privacy Door Knobs: Satin nickel interior door knobs for bathroom or bedroom door. Conformed with ANSI Grade 3 Exceeds 200,000 cyles and 5 pins brass tumbler cylinder;Solid Column security bolt for anti-sawing protection Adjustable latch:Latches adjustable (the distance of Hole Center to the Door Edge) 2-3/8 of an inch or 2 - 3/4 inch (60 mm or 70 mm), suitable for doors with thickness from 1-3/8 inches to 2 inches (35 mm and 50 mm).Please measure the door of your home before buying. The reversible knob can be rotated to work in both directions way for right or left door. Easy to install:Door knobs come with all accessories and included included installation instructions to help you Install your lockset in a flash. Each of door knob is packaged separately to avoid scratches caused by collisions during transit Package List:The door knob kits package includes 10 door knobs,10strike plates,10 latch, installation guide and some screws. No keys included. Ergonomically designed spherical handle, comfortable grip. with brass material the lock core has the property of long service life and stand wear and tear