Colour in your very own art portfolio with over 90 colour combinations. Children can colour any way they want or simply use the pens like regular markers. It’s easy to just connect two pens to the fusion chamber then twist to create custom colour blends and incredible art. The set includes 14 blending pens, mixing chambers, an art portfolio, magic reveal posters, stencils and an airbrush with instructions. Ink is 100% washable.