The product is inspired by normal childcare life experience in dealing with different childcare products in various conditions. It has an evolutionary system of three combined functions which is different from the traditional ones. When people want to take their children to a park nearby, it shows the original function. People may also choose biking, an environmentally friendly travel mode, and put it in the back seat. It can evolve to a feeding highchair in any place if the child feels hungry. Its evolutionary characteristic achieves safety, convenience, and cool appearance.