This is the Van Gogh colored pencil set by professional art materials manufacturer, Royal Star Lenth the Dutch company is condensed their technology best, bestowed the collation of "ROYAL" from the Dutch royal family is also known. In addition bright color, smooth painted feeling, in excellent light resistance, low fade even after long-term storage, it is the definitive luxury Fine Art pencil exactly. . Main body size: horizontal 320 x 185 x vertical thickness 23 (mm). . . Size: thickness = 185mm vertical side = 320mm = 23mm.