Twelve months. Manlong Baby Doll is an interesting building block with toys like rainbow circle. It's a pile of music building blocks for early childhood education. It is suitable for playing for more than six months and less than twelve months, and can cultivate the concentration of infants. Overlapping music is simple and easy, which can exercise people's hand-eye coordination and willpower and cultivate a sense of balance. In the process of building blocks, you can also improve patience and self-control and exercise the flexible application of hand muscles.