The 3 drawer file cabinet has a high-security key lock and an interlocking safety system that prevents more than one drawer from being opened at the same time. Made from heavy-duty steel, it features a 1-hour class 350 fire rating, 30 ft. UL impact rating, and a 30 minute ETL fire rating for digital media. It's available in different sizes, finishes, and it's backed by a limited lifetime warranty.