The RAPiD Vehicle Safe from Hornady features an inflatable bladder that conforms to the interior shape of your vehicle, without modifications. Power is delivered by the included 12-volt car adapter or four AAA batteries (not included). RFID activated by watchband, key fob, or sticker that opens the spring-assist lid. Up to five RFID tags can be programmed. Backup access with a four to six digit security code or barrel key. Exterior housing is made of 14-gauge steel with two internal locking lugs. Includes: 12V car adapter, RFID watchband, two RFID stickers, RFID key fob, two circular barrel keys, and security cable. Exterior dimensions: 12� x 6.4� x 2.2�. Interior dimensions: 7.5� x 5.6� x 1.7�.