Rocker, also known as children's exercise bike, is one of the main toys in children's childhood, which can exercise children's athletic ability, so most parents will choose to buy a rocker in their children's childhood. The main body is made of engineering polypropylene by injection molding, stable structure, simple operation, no battery and transmission device, as long as the left and right turn the steering wheel, you can drive back and forth at will. It is a kind of energy-saving green toy.