Exercise children's hands-on ability, hand-eye coordination, exercise thinking, intellectual development, and explore science.The scientific mechanical structure require and the stable structure makes it more playable, stable connection will not fall, and accompany the baby longer.Different from traditional toys, subversive concepts, children need to operate by themselves, participate more in the toys, and play as much as they want.Improve the fun, broaden the brain, various game methods, let the baby's brain open, love to play.