The Stack-On Extra Wide Personal Safe with Biometric Lock is designed with a solid steel-plate body and a pry-resistant steel plate door. The easy-to-use biometric lock can accept up to 32 different fingerprints, adding to the security and providing quick access. There is also a 4-digit electronic lock and a back up trouble key is included as well. Egg crate foam padding on the bottom prevents scratches on the safe's contents. With the included mounting hardware, this safe can be mounted to a shelf or the floor. This unit can also be attached to a bed frame or other furniture with a cable lock (sold separately) through the pre-drilled fastening holes.