Inspire children to explore the secrets of the oceans with this Deep-Sea Research Submarine construction set 42201. The model is packed with features like those found on real submarines, including steering, 3 spinning propellers, 3 air tanks, and a cockpit with a seat and controls. The toy submarine in this set features an extending arm to grab and lift the barrel accessory as children play out their own sea-bed adventures. This buildable submarine set comes from a range of LEGO Technic sets that feature realistic movement to introduce young builders to the universe of engineering.  Let young science fans create their own deep-sea adventures with this LEGO Technic Deep-Sea Research Submarine construction set with realistic features such as rotating propellers and a grabbing arm to help children explore how submarines work Includes: a buildable submarine including steering, 3 spinning propellers, an extending arm, 3 air tanks, a cockpit with seat and controls Children can zoom in