The small filing cabinet is made from heavy-gauge steel with with Gypsum insulation that's encased in a lattice of galvanized welded steel. It's available in different sizes and you can choose from multiple colors, Ivory White shown. It has a 1-hour class 350 fire rating, 30 ft. UL impact rating, and a 30 minute ETL fire rating for digital media. Quality backed by a limited lifetime warranty.