《Sea Creatures》 This is a fascinating educational coloring book that you can play with using only water. No need for paints or crayons; simply fill the included special water pen with water and trace the pictures in the book to reveal colorful images. The colors disappear when naturally dried, allowing for repeated use. There's no need to worry about staining clothes or floors, making it convenient for playing at home, on the go, during travel, or anywhere. The material is soft and designed with no sharp edges for safety. It's a compact size of 15x15cm, easy for small children to handle, and is recommended as an educational toy to train fingertips, improve concentration, and foster imagination. 【Types (※Many other types are also available)】 ・Sea Creatures (octopus, fish, etc.) ・Princesses ・Vehicles (cars, trains, airplanes) ・Dinosaurs I opened it once, but it has not been used. Available for bulk purchase. Please consult in the comments section if you are interested. Recommended for those looking for educational picture books / educational toys / water-reveal books / coloring books / for toddlers / children's toys / stay-at-home activities / gifts / birthday presents.