Acron Poster Colors - Wash-proof and rich in color value, perfect viscosity for various painting techniques like 1-stroke, watercolor, tie & dye, and gradation; non-toxic and AP certified; quick-drying, ready to use with no separate medium required; wash permanent on fabrics, paper, earthenware, canvas, and other absorbent surfaces; can be sprayed using a compressor for large surfaces; suitable for scholastic and hobby use by students, housewives, and hobby professionals; ideal for mural painting by fine artists and art & craft projects; available in Sunflower Kit, Lilac Kit, and single colors.