Koi® CAC (Creative Art Colors) Water colors are compact kits packed with unique colors and effects for one of a kind projects. Each cake set includes 4 metallics and 8 fluorescents and the 24 color set features an additional 12 pearlescent colors exclusive to the set. The vibrant fluorescent hues are perfect for adding a pop of color that glows beautifully under a black light. The metallic and pearlescent shades are ideal for adding shimmer to your lettering, illustrations, comic characters and mixed media paintings. These special effects also work great on high quality black paper. Explore a whole new spectrum of stunning effects by mixing these Creative Art Colors with your traditional watercolor set.