The fireproof filing cabinet is available in different sizes with your choice of color, Brown shown. Made from a heavy-gauge steel, it has Gypsum insulation that is secured in a grid of 1" x 2" galvanized welded steel. It's water resistant and it has a 1-hour class 350 fire rating, 30 ft. UL impact rating, UL high security key lock, and a 30 minute ETL fire rating for digital media. Quality backed by a limited lifetime warranty.