Feature●Fully mechanical lock eliminates the material and labor expense of battery replacements●Single access code—one easy to manage code for all users●Lock is easily programmed via keypad without removing lock from the door●All metal cast front housing, force-proof, clutch-protected thumb turn, metal exterior trim plate●Field Reversible for Right Hand Left Hand DoorsDescription Kaba Simplex 900 Series Metal Mechanical Pushbutton Auxiliary Lock with Thumb turn, Fits 44mm to 54mm Thick Door, 16mm Deadlocking Spring Latch, Flat Front, Satin Brass Finish