Abstract: This has a plurality of nubs which incorporate preset multicolored decorative designs in their bodies, created by a machine able to apply this manufacturing process, on a multilayered monobloc composed of a base, support and seating layer and another or other upper ones, some of which are on the same level and in which cavities are formed, giving rise to the nubs which define images that change according to their three dimensional structure and different locations, alignments and possible quincunx formation, as well as the different perspective of observers and the variations in the distance of the latter.