DonaTMt let all your hard work go up in flames. FIREKING Fire-Resisting File feature UL Class 350 one-hour fire and impact protection. When tested, files were exposed to 1700AF for 1 hour and then dropped 30 ft. with contents still intact. Steel shell is reinforced by 14-ga. welded wire. 100% gypsum asbestos-free insulation. Drawer catch may be positioned to allow access while the rest of the file is locked. Free replacement if damaged by fire. Free freight to dock (tailgate delivery). For inside delivery, call for price and specify at time of order.