Double-locked lids for wall boxes are used to transport heavy objects. The boxes are constructed with sturdy materials that are strong enough to hold heavy items. Double-sided walls add force to the boxes. They can be built in any size, shape, and color to create the design you want. The boxes are named after their unique structure, an uncluttered base or bottom with two walls. The cover is also made up of two walls, and, through these walls, it is anchored to the base. The design is focused on making sure that the product is packed so that it doesn’t let it out and seals it completely. It is possible to order them in a variety of sizes and colors too.