Liquitex acrylic colors are made in two consistencies. High Viscosity in tubes and 8 oz. jars is thick and "buttery". Medium Viscosity in 2 oz., 8 oz., 16 oz., 32 oz. and Gallon jars is pour-able, great for mural painting, watercolor, hard edge and airbrush techniques. All colors are non-toxic, have a uniform sheen, won’t become tacky in humid weather and are non-yellowing.