This new model wall safe has a extra thin lock. With such a flush design there is no need to inset the door to get the wall safe door flat enough to put a picture in front of it. With out having to inset the door you get more interior room with wider shelves. This Burglary resistant wall safe with digital electronic locking system has a reprogrammable combination and is designed to fit in standard 2x4 wall construction with studs 16” on center. Approximately .63 cubic feet of storage capacity. Dual live bolts. Made of heavy gauge steel. Mounting hardware included. 36 lbs.