This is a Schlage Style Cylinder with a Schlage C keyway designed to fit most key-in-knob and key-in-lever cylinders and some deadbolts.  The lock is 0-bitted with all Number 0 bottom pins and 2 uncut Schlage Look-Alike keys and six tailpieces. Easily repin the lock and duplicate the keys to match to an existing cut key. Satin Chrome finish. 15995SC-26D-0B.   Includes: 2 Ilco® look alike keys, 3 rigid tailpieces, 1 lazy tailpiece for single deadbolt, 2 different length lazy tailpieces for double deadbolts.