Portfolio Series Acrylics are ideal for traditional acrylic painting and applications as varied as airbrushing, printmaking, and marbling, without chemical additives. These 25 vivid colors are rich in pigment, and they have a thick, tube-like viscosity. - Crayola Portfolio Series Acrylics - Ivory Black, 16 oz bottleCrayola Portfolio Series Acrylic, IVRY BLK PT -