Conformed with ANSI Grade-3 Security Door Handles Locksets, Fits door thickness of 1-3/8 in to 1-3/4 in Pair with the touchscreen deadbolt on front and exterior doors. Metal construction adds strength, security and durability 6-way latch adjusts to fit 2-3/8 inor 2-3/4 in backset Easy Installation; instructions enclosed, Easy to install with all accessories included. One person can do it fits both right-handed and left-handed doors, Backed by an Cielsa Dawn 1-year limited warranty