They are constructed with double-layered walls, providing their distinctive strength and durability. They also have refined finishes, appealing colors, and printed designs, which make your items, look more appealing. Additionally, they can be found on supermarket shelves or at retail stores. Boost Packagings offer fast and free shipping across the United States for bulk orders. There are no extra charges for cutting equipment or plate for printing. This double-locked wall lid comes with a tuck-in flap on the inside and an additional flap for tucking in on the outer. The construction of the box starts by folding in the sides and the front wall. The side flaps are put together to create frames. The sides fold over the top, tuck-in flaps, and put into holes punched in the box. This creates a cavity in which the lid can be put.