"This First Alert 1070 cu. in. UL classified media protection file chest has been tested to withstand an external temperature up to 1550F for 1/2 hour and independently verified to protect electronic media, such as memory sticks, CDs, DVDs and external hard drives. Waterproof even when fully submerged. Keys Included qty. 2, Product Style Disaster resistant safes, Waterproof Yes, Material Steel, Cubic Inches 1,070, Dimensions W x D x H in. 16 1/8 x 13 x 12 3/4, Lock Type Latch and key, Mount Type Portable, Fire Protection F Withstands an external temperature up to 1550F for 1/2 hour, Door Thickness mm 25. Stores standard letter size hanging file folders 8 1/2in. x 11in. Protects electronic media memory sticks, CDs, DVDs and external hard drives After fire replacement guarantee UL classified Inside dimensions 12 5/32in.W x 8 9/16in.D x 10 1/4in.H Waterproof"