1Sounds and pictures attract children to learn, vivid and easy to memorize. 2Adopt high quality material. Double-sided paper coated, waterproof and dirty-resistance, not easy to tear up, with bright colors and clear patterns. 3Multi-sensory development of touch, listening and seeing to arouse children's interest in learning. 4There are two colors for you to choose from, meeting your different needs. 5Interactive entertainment. Learn and test to develop children's intelligence, with multiple knowledge interaction, attracting children to learn.