Full-Size/large-format IC/removable core by Schlage.  This is a combinated (keyed-up) 6-pin key core.  Choose from Schlage C or Schlage E type keyways.  Need a different keyway?  Simply call us at (877) 439-5377.  Schlage cores to fit into locks that are prepped for Schlage IC. IC/removable cores fit into the "IC prep", and allow you to re-key your locks without having to remove the entire lock from the door and take it apart.  IC cores are generally used within a master key system.  Your new core will come with one control key (for removing the core) and two operating keys.