Manufacturer: LEPAGE'S 2000 INC.

"Sending valuable items in the mail can be a nerve-racking experience. But this specially designed tape reads OPENED" when it is removed--so you will know if your mail has been tampered with. The tape is also capable of resisting splits, stretching, bursts and moisture. To make application a quick and easy process, the tape is housed in a blue ergonomic dispenser allowing for one-handed dispensing. The white tape meets US postal regulations."