Aqua Stics are oil pastel sticks of exceptional water solubility, high pigmentation and rich color laydown. In addition to their extra softness and brilliant colors, they score with their excellent lightfastness. All Aqua Stic colors are rated either in categories LF1 or LF2 of altogether five categories (see chart). They are highly recommended for numerous applications, such as watercolor, encaustic and sgraffito and can be used on various surfaces, e.g. paper, cardboard, canvas, wood, leather, glass and mirrors. Supplied in single colours and in sets. Available in 40 colors.