Kwikset Laurel Entry Knob featuring SmartKey in Satin Nickel Designer style and superior security with this Kwikset Signature Series product For use on exterior doors where keyed entry and security is needed Featuring SmartKey re-key technology; re-key the lock yourself in seconds in 3 easy steps Universal handing; fits both right handed and left handed doors Features an adjustable latch to fit all standard door preparations This lock fits a standard door preparation(2 1/8 bore hole and either a 2 3/8 or 2  backset) Designer style and superior security with this Kwikset Signature Series product For use on exterior doors where keyed entry and security is needed Featuring SmartKey re-key technology; re-key the lock yourself in seconds in 3 easy steps Universal handing; fits both right handed and left handed doors Features an adjustable latch to fit all standard door preparations