This is a Schlage Style Cylinder with aCorbin L4 keyway designed to fit most key-in-knob and key-in-lever cylinders and some deadbolts. The lock is 0-bitted 6 pin cylinder with all Number 0 bottom pins and 2 uncutCorbin Look-Alike keys and six tailpieces. Easily repin the lock and duplicate the keys to match to an existing cut key. Uses A1011-L4/RU101 6 pin key. Satin Chrome finish.Includes:2 Ilco look alike keys, 3 rigid tailpieces, 1 lazy tailpiece for single deadbolt, 2 different length lazy tailpieces for double deadbolts.