The producted was exposed for two hour to intensely high furnace heat and the contents remained protected. This is an great fire safe for commercial or home use. Security features on this safe include 5 massive locking door bolts to prevent forcible entry, heavy duty hinges and the top of the line Sargent and Greenleaf UL rated group II combination lock to ensure your valuables stay secure inside. Two hour fire safe rated by KIS.Sargent and Greenleaf UL Group II Dual Key and combination lock. Pre-drilled center anchor hole to bolt safe down securely. 5 large locking door bolts. Heavy duty hinges to deter pry attacks. Item Dimensions (in inches) WEIGHT: 650 lbs. Inside Dimensions (in inches) volume is 6.56 cubic feet.