Enjoy aerial adventures with this aerodynamic one-man LEGO Technic Ultralight Helicopter 42057. It features spinning main and tail rotors and includes a controllable tail rudder. The LEGO helicopter 42057 has a detailed engine with moving pistons to assimilate true helicopter technology. It also features an open cockpit with detailed seat and a white, red, and black color scheme with a selection of stickers for an authentic helicopter look. This robust 2-in-1 toy helicopter model can be rebuilt to create an Experimental Aircraft, providing a double build-and-play experience. Both models can be built by following the free interactive, 3D digital LEGO Building Instructions. The LEGO Technic Ultralight Helicopter 42057 includes 199 pieces of interlocking fun and creativity.