Van Gogh watercolors are rated as a student and artist level paint range. They feature brilliant, transparent and intense colors with high tinting strength. Most colors are rated with the highest degree of lightfastness +++ (100+ years under museum conditions) with a few colors rated just one step below at ++ (25-100 years under museum conditions).The 10-Color General Selection Set includes Chinese white, permanent lemon yellow, azo yellow medium, permanent red light, madder lake deep, ultramarine deep, cerulean blue phthalo, viridian, burnt sienna and Payne's grey in 10ml tubes.The 20-Color General Selection Set includes Chinese white, permanent lemon yellow, azo yellow medium, permanent red light, madder lake deep, ultramarine deep, cerulean blue phthalo, viridian, burnt sienna, Payne's grey, Indian yellow, permanent orange, rose, quinacridone purple blue, Prussian blue, sap green, olive green, yellow ochre, burnt umber and Van Dyke brown in 10ml tubes.