The 3 drawer lateral file cabinet is made from heavy-duty steel with Gypsum insulation that's secured internally in a grid of galvanized welded steel wire. It's water resistant and has 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, colors, and it's backed by a limited lifetime warranty.