This collection of Water WOW! cards lets kids color completely mess-free! Splash Cards feature learn-and-play details like capital and lowercase letters, numbers, shapes, and colors, along with water-activated illustrations to bring them all to life. The images turn white again as each card dries, so they can be reused endlessly as children improve letter and number recognition and hand-eye coordination. Each set includes 26 cards, a refillable water pen, and a card clip. These cards make an ideal travel activity toy!