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.