Features: 1.It is a new sailing model utilizing the same power system with the solar racing car but different in gear ratio. 2.The crankshaft- gear mechanism can be learnt well through the assembly. 3.By adjusting the rudder to improve its straight sailing , the kids can also learn the basic boat sailing knowledge . Length: 300mm Width: 90mm Power: solar power or battery Packing: 48PCS/CTN China supplier: Email : [email protected] Skype ID : wayimodel *** MSN ID : [email protected] http://wayimodel.en.ecplaza.net