This is a wooden toy about sport. It can help the children learn step, exercise, balance. It is popular with parents and children with its show originality and consummate handicraft. The unique difference with the common bicycle is that it hasn't footplates to make sure that is safe. With its pack conveniently, the children can do the pack with the parent's help, which can bring up children's capability of manipulation, improve children's thought and develop their intelligence. Children can learn the knowledge about physics and machinery from it when they are playing. We have the unique design on sculpt, we can design many kinds of animal sculpts on the same area to build up children's taste and capability of cognize. As a toy about sport, improving the body diathesis is the first function.