NO-MESS ACTIVITY BOOK: The Melissa & Doug On the Go Water Wow! Adventure Activity Pad features reusable pages that come to life when wet. | 4 REUSABLE WHITE PAGES: Use the pen to fill in each activity and see hidden colors and pictures appear with every stroke! Then simply let the page dry to erase the pictures and fill it in again and again. | REFILLABLE WATER PEN: This activity book comes with a chunky-sized water pen designed for smaller hands to easily grasp and fill. The compact spiral-bound format is great for travel. | GREAT GIFT FOR AGES 3 TO 7: This activity pad is a delightful and educational gift for kids ages 3 to 7 years. Add a Melissa & Doug Reusable Sticker Pad to round out the hands-on and screen-free play experience. | ÄúTHE GOLD STANDARD IN CHILDHOOD PLAYÄù: For more than 30 years Melissa & Doug has created beautifully designed imagination- and creativity-sparking products that NBC News called Äúthe gold standard in early childhood play.Äù | 100% HAPPINESS GUARANTEE: We design every toy to the highest quality standards and to nurture minds and hearts. If your child is not inspired give us a call and weÄôll make it right. Our phone number is on every product!