Stak-N-Lok™ is a space-saving filing solution which offers locking doors for added security and privacy (HIPAA). Manufactured from high-quality steel, free of scale or rust, the Stak-N-Lok™ tier construction allows for modularity; use a 2-high unit for desktop storage or go as high as 7 tiers for maximal storage. Cabinets feature flip-up doors, sure-grip handles, and fixed shelves with movable dividers. One key simultaneously locks all doors at both ends for maximal security. Lock is located at top of unit. Nonlocking version also available.