This product was made of steel with a thickness of 3 mm, while the edges (where they are placed to rest the barbells) were coated with a plastic protection. Move the barbell from the floor to the wall and you will immediately have more space in your gym. So you can keep the box tidy and improve its appearance. On the KingsBox wall rack, you can place up to 10 Olympic barbells. You can place all the barbells on the rack, for men, women, technicians and juniors.