“Morandi” folder boxes are made with Duralong Wave conservation board in high thickness (5,0 mm) on the outside, and Duralong Special 1.8 mm board, as an additional internal reinforcement to all the box walls. Ideal for horizontal and vertical storage of artifacts of considerable weight and size, such as choirs, missals, etc. as well as for spare documents or flap folders and envelopes. They are designed to ensure maximum resistance and protection. This particular process with the plotter machine of the external part (“V” cut), considerably facilitates the fold; the herringbone cotton tying tapes of increased height (2,5 mm), ensure a safe and durable closure.