If you have reason to be extraordinarily serious about security, FireKing® 2-Hour Fire and Burglary safes are perfect for you. They are designed to offer superior fire and burglary protection. All six sizes carry a UL Class 350 2-hour fire rating, and all have passed ULs impact test. All meet stringent security testing and carry a UL RSC burglary label and a UL-listed relocker. Available in graphite or taupe. Dial combination standard, electronic combination optional. Protection against temperatures above 1500° and 30-foot drops plus superior protection from burglary. The UL impact test calls for the safe to be heated to 1550° for 30 minutes (1638° for 45 minutes for a 2-hour fire-rated safe) then dropped onto concrete rubble from a height of 30 feet. Then it is inverted and reheated for another 30 minutes (45 minutes for a 2-hour fire-rated safe). The safe must maintain its integrity throughout the test and protect all contents. Why is impact testing important? In many fires, roofs will cave in or the floor will collapse, destroying everything under them. In such an event, youll want to know your safe is impact-rated.