This pair of ANSI Grade 3 tulip knob entrance locksets are keyed alike so you can use the same key on two different doors. They complement both traditional and contemporary residential exterior doors. Their backset is adjustable between 2-3/8-Inch and 2-3/4-Inch. These locksets are made to fit doors between 1-3/8-Inch and 1-3/4-Inch. They feature a dead latch style backset and a square corner striker. The US3 polished brass finish is protected by a clear powder coat finish. Their excellent craftsmanship is backed by Legend"s Limited Lifetime Warranty.