Farmer Power Tractor and Trailer Specification.. This 6 volt tractor and trailer comes complete with 6 volt rechargeable battery and charger. It has foot pedal control and manual foot brake. Maximum Speed: 5km/h Age - 3 plus Maximum weight 30kg Features: - 6v Rechargeable Battery - Pedal Control - Brake on foot pedal - Speed: upto 5 Km/h - Age: 3+ Years