Big fun in a small tin! Imagine solid blocks of watercolor pigment for drawing and painting... yes, you can draw with and then add a few drops of water and you've got liquid watercolors. They can be used for a variety of techniques on a variety of surfaces and are made of the highest-quality pigments to ensure smooth color lay down. Use for classic watercolor work, sketching, drawing, blending, and monoprint. The colors can also be thinned for use in airbrushes. The set of 10 watercolor blocks includes: Permanent White, Cadmium Yellow, Orange, Carmine Extra-Fine, Delft Blue, Prussian Blue, Light Green, Emerald Green, Sienna Natural, and Ivory Black, plus a reusable pop-up sponge. The sponge can be used on large areas to create washes, for adding details, or for cleaning drawing materials. Made in Austria. Conforms to ASTM D-4236