Sentry Business Safe Sentry Advanced Business Safes are ideal for storing and protecting important documents and valuables in the office or at home. Each safe is U.L. classified up to two hours and is water resistant. Features four number changeable combination and tubular key lock and multiposition shelf and two trays, seven live-locking bolts, key storage and door compartment for small items. Holds standard and A-4 size paper, folders, and binders laid flat. Includes hardware to bolt safe to the floor. 2 cubic ft. capacity.