Brilliant, smooth-flowing colors give you the ultimate in versatility. Concentrated, ultra-fine pigments, permanent on most surfaces. Colors are completely mixable. Terrific for spraying on textiles, paper, wood, canvas and more! Water-based colors can be sprayed continuously without clogging. Unlimited shelf life allows colors to be stored for several years without color separation. Odor-free. 4 oz. bottle. Transparent medium gray. AP Seal, non-toxic.