WHY MASTERLOCK: With over a century of trusted innovation and excellence, Master Lock’s new Premium Fireproof Safes offer unmatched fire and waterproof protection FIREPROOF SAFE: The safe is UL Classified to endure 2 hours at 1850° F and keep interior temperatures safe for irreplaceable documents WATERPROOF SAFE BOX: The safe box is ETL Verified for 24 hours of protection in water up to 5 inches deep offering peace of mind in the event of a flood or fire extinguishment MEASUREMENTS: Exterior: 23.8 in x 19.3 in x 18.6 in Interior: 19.6 in x 14.8 in x 11.9 in, 2 cu-ft capacity MAXIMUM SECURITY: Fireproof safe features six 1-inch door bolts for advanced protection, steel construction, pry-resistant hinge bar, and bolt-down hardware