... Materials: 16 gauge black steel exterior with thick memory retentive foam interior Mechanism: Fingerprint biometric lock, key lock override, omni-directional ... you can use on your listing = Secure-It Storage Safe, Gun Vault Handgun Storage Box, Deluxe Mini Vault, Bio-Box, Fingerprint ... fingerprints? Yes, you can store up to 9 additional fingerprints. gun safe box biometric safe lock US