The Super Rainbow Deluxe simply requires filling the Aquadoodle pen with ordinary tap water, running the nib over the magic mat to see colours appear. Any water that runs off the mat runs clear, creating no mess or stains. As drawings dry, designs fade away, allowing the mat to be reused repeatedly. Refill the Aquadoodle pen with water to continue. Included in the set is a special paintbrush for broader strokes, along with three stampers for added mess-free fun. The 65 x 85 cm mat folds up for easy storage. Additional Aquadoodle pens are sold separately.