This is an ocean-themed coloring book with a special water-filled pencil. Each book contains 6 pages with drawings and a pencil that can be filled with water. The drawings on the pages are printed in black and white, and when the white areas are colored with a water-filled pencil, the most beautiful colors emerge. When the picture dries, it becomes black and white again, so children can immerse themselves in the creative process again and color endlessly without getting their hands dirty, simply by filling the pencil with water. The compact format is ideal for taking the book with you anywhere and giving children the opportunity to enjoy coloring. This creative set also has high didactic value - it supports the development of creative abilities, such as painting or decorating, stimulates fine motor skills and early writing skills, promotes concentration and helps children develop self-confidence.