The Simplex 71041941 series of Simplex Keyless Locks eliminate problems and costs associated with issuing, controlling and collecting keys and cards. Unican Kaba Ilco Simplex is the leader in top of the line security solutions that presents industrial strength combination lock with high quality security products for over 100 years now. For a security lock, the highly weather resistant Simplex 7100 Series earns an impressive Grade 1 rating from ANSI American National Standards Institute this rating is the highest one they give out for quality. It provides fully mechanical primary or auxiliary pushbutton access control by exterior combination, while allowing free egress at all times by interior thumbturn. Specifications. Color Black. Size 2.372.75 Adjustable Backset. Weight 5.5 lbs