Protect documents, samples, parts, and other chain-of-custody contents with this 9" x 12" 4 Mil tamper evident Clearzip¨ bag. The clear polyethylene construction keeps packaged items visible for faster receiving, inspection, and inventory checks, while the 4 Mil material provides more puncture and tear resistance than standard light-duty poly bags. Its 9" width and 12" height provide a practical format for flat items that need a secure, organized package without excess material. This bag is well suited for operations that need a clear indication when a sealed package has been opened or accessed during handling, storage, or transport.