Color: Matte Black Size: Entry Premium Quality The door knobs feature a modern square design finish, perfectly premium heavy-duty material add modern and an impressive accent to your home Easy to Install The door knobs exterior are very easy to install. Only need a door and a tool set, you can do it yourself Parameters Adjustable backset 60mm(2-3/8") or 70mm (2-3/4"), our front door knobs fit doors 35 to 45mm (1-3/8" to 1-3/4") thick Applicable Scenarios The entry door knobs are suitable for your exterior, front door or anywhere that requires keyed entry and security.