By putting DecoArt's Water Marbling Magic Medium in a basin of water you can then use our Water Marbling Acrylics to create delicate and unique designs directly on the waters surface. When water marbling, no two designs will be alike, the surprise and unique quality of each design is part of the magic and mystique of this ancient art form. Simply add to water and let it work it's magic! One jar can make hundreds of pours!