Four wide file drawers built with high sides for use with hanging folders and 1 follower block per drawer Has UL listed high-security Medeco locks. Picking and drilling resistant lock. Keys cannot be duplicated except through FireKing. Access to vital records limited to authorized key holders only 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