Prang watercolor half pan set are semi-moist watercolors with intense wax free pigments. You will experience a smooth laydown of brilliant colors with limitless textures. The easy snap-in refill pans help you match your preferred colors more economically. Each watercolor set includes 16 brilliant colors and a strong white case with built-in mixing areas along with a top quality paintbrush. AP certified non-toxic. Sold as a pack of 2 sets.