Check the listing for details. Key Control ... Lock Box ... Key Storage ... by KEYSURE (Set of 2) – Clear. Condition: New. Listed at 19.95 USD. Buy the Tamper Evident KeySure Key Lock Box Control System – High Security Seal, Foolproof Accountability Trail – Made in the USA KeySure’s patented Key Control container is a pilfer proof, tamper evident key safe. This is the only non-electronic security device that will control and audit the use of a key, password or any other content. Once an item is secured inside the Key Control, it must be physically broken to access the contents. These ‘Single-Use Lock Boxes’ provide physical accountability for the protected item. Check out our informational YouTube video to see the KeySure Lock Box in action This is a simple, effective device for:Property Managers IT Professionals Facility Managers Personal Use The most powerful benefit of the Key Control container is that it can be used to prevent those responsible for your keys, flash drives or other personal information from unauthorized access by providing physical accountability. However, they are still able to access the contents in an emergency or any situation that requires access. This is possible because the Key Control container must be broken to retrieve its contents. This one-time-use key access box ensures that it: Protects Both Parties from Surreptitious Use Provides Physical Accountability Prevents False Accusations Eliminates Liability The Key Controller is Safe, Simple and Secure. No other key control product on the market is as easy to use or as inexpensive because the Key Controller is the only non-electronic key control system available. It’s an efficient, effective, proven key lock box product. **NOTE: To prevent you from having to go without coverage in the event that you have to break open and get into your primary KEYSURE KeyController unit, we sell the KeyControllers in a set of two so that you have a backup unit.