A. Rifkin Co. Secur-a-File® protects printed documents and alerts you in the event of a security breach. This product enables the use of filing cabinets and desks for non-classified and classified materials placed safely inside the Secur-a-File within the drawers. Users insert an individually numbered, one-time-use security seal into the built-in Keyless Security™ closure. Any unauthorized access or tampering will quickly be noticed due to the lack of a security seal or the presence of a differently numbered or broken seal. Equipped with heavy-duty metal suspension rods, the legal-size Secur-a-File can hold files that are up to 4 inches thick and weigh 12 pounds.