Combi-Cam Ultra, 7440M & Keys, Combination Cam Lock with Master Key Override, 7/8" Cylinder Length, Chrome Finish Dual access  keys and combination with easy to read dials and open and close indicators Ability to install horizontally and vertically Can override current combination with master key or retrieve current combination 1,000 possible combinations with high security tubular keyway Perfect for healthcare, education, gyms, school lockers, drawers or doors