... comfortably, simply assembling, firm durably, more fashionable, considering the growth of children fully, the seat, handlebar and pedal composites an equilateral triangle ... used for fitness. It trains child's body and cerebrum's growth.Bring the inexhaustible joy for the family and the child, and happy ... ,sturdy durable frame go-kart,fitness&exercising kart,at home&in the park F150