Oil art chalk of a very high level of quality meeting the requirements of the professional and amateur artist. Also recommended for teaching drawing at higher levels. Water resistant colors, soluble in turpentine. Soft, not powdering and working "on the finger". Very high concentration of pigments offering economy in use as well as excellent resistance to exposure to daylight. Compliance CE EN71 at AP (USA only). Techniques: many. Mixtures of unlimited colors. Also recommended for dark paper application.