Created using choice pigments and a special gum arabic blend, Rembrandt Watercolors are triple-ground to a superfine consistency to produce maximum color clarity and uniform washes even when highly diluted. Set come with 12 Pans, 24 Pans, or 48 Pans and a pure Red Sable brush.. - Rembrandt Artists' Watercolors - Set of 12, Special Effects ColorsRembrandt Watercolor, 12/PN MTL T SPCLTY S - This set contains 12 pans of Rembrandt Watercolor and a Size 4 Round Red Sable Brush. Colors Include: Interference White, Interference Blue, Interference Violet, Interference Green, Chameleon Gold/Red/Violet, Chameleon Red/Violet/Blue, Chameleon Violet/Blue/Green, Chameleon Blue/Green/Gold, Spark Green, Spark Blue, Spark Violet, and Spark Pink.