The 6-Color Pearlescent Metals Set includes copper, bronze, olympic gold, Arabic gold, champagne silver and silver. These pearlescent colors are handcrafted in Germany and dissolve with water and a brush, just like traditional watercolors. Lightfast and pigment-rich, the paint can adhere to a variety of surfaces including paper, wood, cardboard, clay and stone. They work well with brushes and dip pens; simply brush the color onto a nib to use it as calligraphy ink.