Dr. Ph. Martin's Hydrus Watercolors and Sets

Hydrus Watercolors are made from the finest lightfast, transparent, brilliant and permanent artist pigments. These liquid colors are highly concentrated and when used straight from the bottle, yield the most vivid colors available to the watercolorist. Add water to achieve the richness of tone you desire and white for pastels and opaque shades. Use with brush, technical pen, or airbrush.