In addition to the valuable Italian marble, Ferrara Marbles produces a large amount of material removed, from which derive these off cuts, and the napoleon brown. The off cuts are a by-product of the processing of marble, and are used for the construction of embankments, walls or barriers along waterways, in coastal areas, cliffs for defence of ports or retaining walls. Ferrara Marbles can provide large quantities of material of up to 1.5 meters in diameter and over three tons in weight. The large irregular marble blocks are very heavy and ensure a high durability against erosion of natural agents and protecting the shores of rivers or coastline.