Melissa & Doug Water Wow Activity Book - Alphabet and Numbers with Dimple Ring 4 alphabet-themed and 4 number-themed practice boards and refillable water pen Reusable pages are white when dry; reveal colors when wet. Chunky-size water pen is easy to fill, easy to hold Compact, spiral-bound format great for travel Promotes fine motor skills, letter-recognition, and writing skills Dimple ring color may vary