Features: 1. Digital learning and cognition, made of fine wood, hand-eye coordination, 0-9 number building game, 2. Learn while playing, learn while playing, work hard, know numbers, and make learning more efficient. 3. The water chestnut is polished smooth and round, no burrs, no scratches, made of solid wood, strong and durable, 4. According to the number of the digital base plate, match the hair balls into the bumps, 5. Exercise children's fine hand movements and improve concentration
