The Pentel Arts Watercolors feature Rich, dramatic colors spread and blend easily to create subtle hues. Dries evenly, resists fading, and will not crack or flake. Ideal for glazing without turning "muddy". Each laminated tube contains 5ml of brilliant, acid-free watercolor paint. Plastic tubes allow every last drop of paint to be used. Great to use in conjunction with oil pastels and color pencils. Once colors are dry on palette, they can be re-used when water is applied. Acid-free and Certified by ACMI. Each set includes 12 colors: White, Prussian Blue, Yellow, Red, Lemon Yellow, Vermilion, Yellow Green, Brown, Viridian, Yellow Ochre, Cobalt Blue, and Black.