A folding box for the storage and presentation of products is provided, which includes an outer packaging body with a front wall, a rear wall, at least two side walls, a top element, and a bottom element, and which also includes a hollow inner chamber with a polygonal cross section in the interior of the outer packaging body. The inner chamber is formed by a front wall element, a rear wall element, and two side wall elements, and holds a product securely in the folded-open state of the folding box. The folding box is formed from a one-piece blank, and the outer packaging body and the inner chamber are glued to each other, providing the width of the inner chamber being less than the width of the outer packaging body, such that, between at least one side wall in the interior of the outer packaging body and at least one side wall element of the inner chamber, an empty space is formed. At least part of only one of the outer surfaces of the inner chamber elements, namely, either part of the front wall element or part of the one of the two side wall elements, is glued to only one of the inner surfaces of the outer packaging body. The inner chamber is formed by folding the front wall element, the rear wall element, and the side wall elements toward the outer side of the blank.