(PACKOF 6 - 2 MAGICAL REUSABLE WATER COLORING BOOK AND 4 Sank Magic Practice Copybook, (4 BOOK + 1 PEN + 10 REFILL) Number Tracing Book for Preschoolers with Pen, Magic calligraphy books for kids Reusable Writing Tool (19*13 cm) )Draw with water and magic pen-no paint is required, all you need is tap water. No more dirty clothes or messy room. Colored area will gradually fade after about 5 to 10 minutes as the colored areas dry, and the pages can be colored again. Reusable drawing board ,once you color ,the pictures are very vivid and colorful. As soon as they dry the colored areas disappear and the pages can be colored again and again right in the front cover, so Water Wow books make ideal travel activity books and travel toys for kids Unique gift for child, great educational toys for baby early development. It'll fit comfortably in toddler day pack. No ink and no chemicals, it does no harm to your kids. Convenient for kids to paint, which can arouse the interest and curiosity of your baby and the design of the pen make kids feel comfortable. Portable and convenient to carry for kids and toddlers