Encourage kids’ curiosity as they explore the secrets of the oceans with the LEGO Technic Deep-Sea Research Submarine (42201) building toy. This toy for boys and girls ages 9 and up is packed with features found on real submarines, including steering, 3 spinning propellers, 3 air tanks, and a cockpit with a seat and controls. The LEGO submarine toy features an extending arm to grab and lift the barrel as kids play out their own sea-bed adventures. This building blocks set makes a great gift for kids who enjoy buildable vehicle toys. Use the LEGO Builder app for an intuitive building adventure, with features that include zooming in and rotating models in 3D, saving sets and tracking progress. Check out the extended range of LEGO Technic sets, which feature realistic movement to introduce young builders to the universe of engineering. Contains 413 pieces.