Blockx Watercolor Paint, metal box with 24 half pans. Metal case containing watercolor paints in half pans. The extra-fine watercolors from Blockx exhibit exceptional lightfastness (rating 7/8 on the international BWS measurement scale). The watercolors are made from rare, finely ground pigments that are coated with gum arabic and honey to enhance the durability of the colors and give them more shine and vibrancy. They offer a glossy finish and a creamy texture.