The Stack-On PSF-709 Fire-Resistant Combination Lock Home Safe is a must-have home accessory for those just in case moments. This combination lock operates with turning the four digit combination on the safe for it to open. Packed with security features, this fire-resistant safe will keep your family heirlooms and irreplaceable photographic negatives safe from damaging blazes. You"ll be amazed at how many of your worries are put to rest once this unit is installed in your home. Added safety and protection. This safe is constructed of heavy-duty steel and insulated with a mixture of vermiculite and cement. It has a 4-number combination lock. The solid steel, pry-resistant door has two live action locking bolts and two steel dead bolts. That"s four locking points! With pre-drilled holes, this safe can be easily mounted to your floor. All hardware is included. This safe has one adjustable, removable shelf for your valuables. The shelf measures 12.1875W x 9.4375D inches. This fire-resistant safe is California DOJ-approved for firearms safety and is ETL-rated for superior performance against even the hottest fires. Meaning this unit can withstand a 1700 degree fire for up to 90 minutes! It is not recommended that you store CDs or other electronics inside. This cabinet has an exterior dimensions of 17.375W x 14.8125D x 16.5H inches and interior dimensions of 12.875W x 9.5D x 12.125H inches. About Live-Action Bolts A live action locking bolt protection system has been added to these safes to prevent accidentally closing the door with the locking bolts in the open position. Closing the heavy safe door with the locking bolts extended can damage the finish of the door frame as well as the live action locking bolts. Mounting Hardware and Installation Each safe is manufactured with pre-drilled holes for mounting to the floor. Bolt and screw mounting hardware is included with each safe for installation. Safe must be bolted to the floor to insure waterproof rating. About Stack-On Stack-On Products Company is a leading manufacturer of top quality tool storage and security products. Since 1972, Stack-On has supplied a wide and diverse line of tool storage products to meet the needs of mechanics, maintenance personnel, trades persons, homeowners and hobbyists throughout the world. Stack-On"s warehouses are centrally located in Northeast Illinois, near Chicago. * Keeps your valuables safe from fire * CA DOJ-approved for firearms safety and ETL-rated * Fire rating of 90 minutes at 1700 degrees Fahrenheit * Durable steel construction with cement insulation * Solid, pry-resistant steel door * Added security with 2 live-action locking bolts and 2 dead bolts * Combination lock with 4-number system and backup key override * Weight: 152 lbs. * Shelf dimensions: 12.1875W x 9.4375D inches * Interior dimensions: 12.875W x 9.5D W x 12.125H inches * Dimensions: 17.375W x 14.8125D x 16.5H inches