Best combination key storage lock box with dual combination design The ShurLok combination lock box has a patented dual combination design meaning one combination will open shackle while the other combination will open key door. With up to 10 000 possible combinations ShurLok key storage box is easy to set up and use right away. Be assured that your combination is secure with so many different possible combinations. Never Get Locked Out Again! Have the Peace of Mind that you or a loved one will never be locked out again! The ShurLok offers assurance that such an occasion will never arise. There is also no need to hide your key under a rock or under a door mat which are common places that burglars seek for access to a home. Buy a ShurLok today and gain Security Convenience and Peace of Mind. Open the ShurLok in the dark The ShurLok is great for site-impaired individuals or for opening in the dark. Zero Locking Feature can be used as follows: Durable construction The ShurLok key box is one of the best quality lock boxes on the market and is very low priced! This key lockbox is made out of metal and has a hardened steel shackle for added security.