These sets feature versatile oil paints made of pigments and vegetable oil providing intense color. They can be painted both in thin and very thick layers. The paint dries very slowly and can be worked for and extended period of time. Colors will not get darker or lighter when drying. The 12-color set contains one 12ml tube each of titanium white, lemon yellow, yellow, scarlet, carmine deep, ultramarine, cerulean blue phthalo, permanent green, yellow ochre, burnt sienna, burnt umber and ivory black. The 24-color set contains zinc white, titanium white, lemon yellow, yellow, orange, vermilion, scarlet, carmine deep, ultramarine, cobalt blue ultramarine, cerulean blue phthalo, phthalo blue, Prussian blue, permanent green, emerald green, viridian, olive green, yellow ochre, raw sienna, burnt sienna, burnt umber, raw umber, Payne's gray and ivory black.