Description About this product:- Number of different models that you can construct: 2 models Number of assorted parts in the kit : 133 Parts List of parts with images included in the book. Construction of the model involves Allen screws and screwdriver along with spanner- both of which are provided in the set. This type of construction is followed by most professionals worldwide. A detailed illustrated step-by-step book is provided to enable you to construct the models Tips on fitting the metal and plastic parts included Metal parts are made from high quality steel and finished perfectly with smooth edges The constructed model can be dissembled and another model can then be constructed After completing all the models, you will get a sense of satisfaction and you want to make your very own models This kit improves STEM skills as the maker learns to follow schematic diagrams, understands spatial arrangement, engineering and architectural construction and creative thinking This is an ideal kit to introduce the kids to the world of Mini Engineering and architectural construction wherein they also get to understand basics of gears and motion