The Stronghold® Key Safe has achieved Secured By Design police approval. Featuring a hardened steel body and attack resistant design to keep spare keys safe outside a property. Easy access to securely hold a front door key, or fast access in an emergency.Durable die cast construction designed to withstand attack.12 button recodable combination lock.Easy to recode. Chosen code can be any number of digits, from one digit up to a 12 digits.4,000 possible combinations. Revoke access at any point by changing the code.Automatic reset feature for extra security.Weather resistant cover.