Details: This Stack-On 10-Gun Safe with Combination Lock holds varieties up to 52" tall. That means there is plenty of room for your shotguns and most kinds of rifles, as well as all types of pistols. This unit has been tested and verified to be fire resistant for 30 minutes up to 1400 degrees Fahrenheit by ETL, an independent testing lab. This Stack-On safe has two-way locking with three strong live action and two dead bolts made from steel for five points of security. It is also a California-approved firearm safety device that meets the requirements of Penal Code section 23655 and the regulations issued thereunder. This sentinel safe has a three-number combination with a drill resistant, hardened steel plate behind it for greater protection. A backup key is included and batteries are accessible from the front and are easy to replace when out of power.