The dense acrylic colors in the sets are specially designed to provide the painter with the correct selection of tones for a specific job. Each set includes colors assembled with a theme or technique as a link. The Black and white colors and their transitions are necessary not only to represent a painting technique or some colors but also to create shadows and lights or work any type of mixture. The gray tones are neutral tones that provide lighting or darkness as we need. Contains: ABT1141 Medium Grey ABT1143 Light Grey ABT1104 Pure Black ABT1103 Smoke Black ABT1101 Pure White ABT1102 Off White