Fingerprint Access Biometric Wall Safe Cabinet with Combination / Password Lock & Backup Keys Quick Access Safe with the convenience of Biometric lock, designed for the quickest access possible! State of the art biometric lock can accept 32 different finger prints. Wall mounting feature allows the Safe to be installed flush on the wall so it can be easily covered by paintings, tapestries, etc.. Designed for standard wall Studs Spacing with Pre-drilled holes for mounting to the wall / Fastening hardware is included External Dimensions: 22" H x 15" W x 4" D (559 x 381 x 101mm) / Internal Dimensions: 21" H x 14" W x 3-3/4" D (533 x 355 x 95mm)