Submarine toy set for kids – Let young science fans create their own deep-sea adventures with this LEGO Technic Deep-Sea Research Submarine toy Realistic features – This creative building toy features rotating propellers and a grabbing arm to help kids explore how submarines work Opening cockpit for imaginative play – The transparent cockpit of the toy submarine opens to give access to the seat and controls Barrel accessory – The LEGO Technic set comes with a barrel accessory, which kids can pick up using the submarine’s extending grabbing arm A helping hand – Discover intuitive instructions in the LEGO Builder app - kids can zoom in and rotate models in 3D, track progress and save sets A gift for kids – This creative toy makes a fun birthday gift for 9+ year old boys, girls and kids who are interested in submarines and deep-sea exploration An introduction to engineering – LEGO Technic sets feature realistic movement and mechanisms to introduce young LEGO builders to the universe of engineering