Just spritz water to reveal the brilliance of ColorSparx Watercolor Powders! Place a stencil on watercolor paper, sprinkle ColorSparx Powder in open areas and spritz with water. Then remove the stencil to reveal the image. Instead of wiping the stencil clean, press it into another sheet of paper to print a second image. ColorSparx Powders can also be mixed into Gel Medium, Modeling Paste and Paints to create custom colors. These powders are non-toxic and acid-free. Not intended for use by children under the age of 14. Available in 6 Color Sets of three 5g bottles.