When you are protecting valuable documents you want the best. When it comes to fire protection, half as good is no good. It features four legal-size file drawers built with high sides for use with hanging folders and 1 follower block per drawer. One high-security UL-listed keylock top drawer is used to control all drawers. Fireproof insulation is 100% gypsum reinforced by a 1” x 2” lattice made of 14-gauge galvanized welded steel wire, providing complete peace of mind from fire, impact, or explosion. 1-Hour class 350 fire with Impact UL label. Tests include 1-hour exterior file exposure at 1700°F, a 2000°F explosion test, and a 30-foot drop to test impact integrity. ETL verified listed water-resistant means files are designed to prevent water damage resulting from sprinklers and fire hoses. ETL verified mark 1/2 hour fire protection for hard drives, CDs, DVDs, flash drives, and HIPPA documents. 2-Position drawer catch allows access to certain drawers while others remain locked. Drawer heads are formed of welded steel and filled with fireproof insulation and are field replaceable. The finish is an environmentally-friendly electrostatic powder coating applied to all sides, including the bottom. The finish is scratch-resistant, providing a lifetime quality appearance. FireKing's limited lifetime warranty on all mechanical or operable parts. Associated labor costs will be paid by FireKing for two years from the date of purchase. If your FireKing file sustains any damage while protecting documents from a fire, FireKing will replace the file free of charge.