Spectrum Noir SPECN-AQ12-FLO Watercolor Marker Set Combines water based medium with the convenience dual tip maker for the perfect watercolor solution Low price + high performance = outstanding value, the smart choice Acid-free - odor-free - non-toxic - ergonomic barrel Dye based rich colors, smooth laydown, good for rubber-stamp coloring Flawless, even coverage with all the definition and vibrancy to deliver outstanding results