The 6-Color Fluid Intro Set contains six colors in 1 fl. oz./30ml bottles. It includes benzimidazolone yellow medium, naphthol red light, ultramarine blue, permanent green light, carbon black and titanium white. These highly intense, permanent colors have a consistency similar to heavy cream. They are produced from lightfast pigments, not dyes. No fillers or extenders are added. Fluid Acrylics contain high pigment levels suspended in an acrylic polymer vehicle.