• 1: Just add water to paint, safe and non-polluting
• 2: These colorful images will disappear naturally after 5-10 minutes of drying, and can be painted again
• 3: Just add water to the pen and then paint on the cartoon watercolor sketchbook
• 4: Animals, universe, dinosaur era, means, underwater world and other scene designs
• 5: Foldable, small and exquisite, can be well put into the bag