Specifications: It encourages children to track and learn hidden letters, numbers and animals through coloring searching games to develop children's basic understanding of literacy, creativity, imagination and visual discrimination. You can refill a large-sized pen to draw a creature on the mat, then wipe it dry for nearly 3-10 minutes before erasing the picture, and then again and again filling. Instructions for Use: Water painting book has 5 pages, 4 pages can be painted The brush can be filled with water, no paint needed The water painting book changes color when contacted with water, but it should not be soaked in water After painting, you need to wait for the book to dry before closing it The water brush is not suitable for a long time, please pour the water clean and save it Item Name: Water Painting Book Material: Paper Features: Environmental Friendly, Reusable, Refillable, Unique Technology Size: 15cm x 19cm/5.9" x 7.5" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Water Painting Book 1 x Paintbrush