This box is created for the mail order business. In case of return sendings, the consumer don't have an appropriate packaging, because in most cases the original box is destroyed. With this construction it is possible to use the same box without using gluing an tapes.
This is a ship box with inbuilt return function. The seller close the package without using gluing and tapes. The recipient can open the box easily by a defined perforation. The consumer can return with the same box because the inside flap has the same function as the outside flap.