It is necessary to answer this question. Before the baby was born, many educational toys were prepared, but after the baby was born, nothing was useful except black and white cards, because the baby was too young. By a month, the baby began to be full of motivation, especially a pair of calves, and suddenly thought of this toy. Taobao sold a set of 100 or so. At first, I was afraid that the baby wouldn't be able to play. I didn't know that people would kick naturally and the firepower was full. Coupled with music, the baby seems to have a sense of rhythm in a few days. What is even more surprising is that he is quite quiet at ordinary times. As soon as he took the toy, he immediately got high, as if he knew what it was for. Sometimes he can play for half an hour, and even gradually has the consciousness of grasping the toy, trying to hit it with his little hand. He was very happy and curious, so I took the opportunity to have a rest. Now that the baby is three months old, his interest in this toy has weakened a lot, but his leg strength has weakened. You can try to stand up with a little help. Of course, I will hold him, little ass. His legs are strong. I think this toy can greatly exercise the baby's leg strength and the coordination of hands and feet, and even develop the baby's sense of rhythm. Worth buying.