The unique selling point of a Fort Knox Treasury home safe is excellent resistance against burglars and fire. The series comes for sale equipped with AR500 3/16" liner (for additional price a buyer can add up to four layers more); and second stainless 10 gauge steel liner for that purpose. Moreover, Fort Knox Treasury Series Home Safes have several customization features. First of all, they are available in various exterior finishes and several interior fabrics to choose from. Secondly, they can be equipped with either dial, electronic, biometric or redundant locks. And thirdly, it is possible to choose the color of lock. Buy the safe which meets your needs.