Seems to be a good package for the price, the components and body of the generator are all metal. Not tested yet as it appears that the supplied wind controller that is about 3 or 4 cm shorter than the one in the photographs and is a square block, not rectangular, does not offer wind braking once your batteries are full and would mean that the blades would not brake, but instead freewheel which is bad for the product. The supplied instructions show a manual brake for the generator. These work by shorting the output of the turbine to slow or stop it. but this is not included. You can purchase a wind turbine controller similar to the one in the photos quite cheaply separately if you do a search on the internet. Something to bear in mind if you intend to use it in a windy location! This is for camping and caravanning occasional use on the coast. you will also need to purchase an adaptor, its called a wind turbine flange 102mm o/d, and takes the base of the turbine and connects it to a 44mm o/d pipe for the pole.