Ideal for those new to the medium, these sets feature transparent watercolors and a step-by-step plan that makes it easy for aspiring artist to start painting with watercolors. The paints can be applied and thinned with water. The more water used, the lighter the color of the paint. Artists can apply many transparent layers on top of one another, but after drying the paints are not waterproof. The 12-color set contains one 12ml tube each of Chinese white, yellow, scarlet, alizarin crimson, ultramarine, cerulean blue phthalo, yellowish green, deep green, yellow ochre, burnt sienna, burnt umber and Payne's gray. The 24-color set includes Chinese white, lemon yellow, yellow, orange, vermilion, scarlet, alizarin crimson, carmine deep, violet, ultramarine, cobalt blue ultramarine, cerulean blue phthalo, Prussian blue, yellowish green, light green, deep green, sap green, yellow ochre, raw sienna, burnt sienna, burnt umber, raw umber, Payne's gray and ivory black.