Popular water color from selected pigments Economical price makes this excellent for students Good transparency - excellent tinting strength 8ml tube Cobalt Blue Hue Cotman Watercolors are a good quality and inexpensive selection of watercolors! Choose from a wide selection of colors made from traditional pigments and reliable synthetic colors. This package contains (1) 8ml tube of watercolor paint. Available in a variety of colors, each sold separately. Conforms to ASTM D4236.