Set contains six 21ml tubes: Permanent Alizarin Crimson, Cadmium Yellow, Phthalo Green-Blue Shade, French Ultramarine, Titanium White & Yellow Ochre. These paints are designed to look and work just like traditional oil paint, but they're a bit special. You can use them without hazardous solvents. They're happy being thinned down and cleaned up with water. They're especially good for artists who share a workspace or don't want solvents in school or at home. Artisan Water Mixable Oil Colours are available in 40 vibrant tones with a thick, buttery consistency. A selection of special thinners, oils and mediums are available in this range as well.