LEGO Technic 42002 Hovercraft 2-in-1 model: Rebuilds into a Plane with a spinning rotor and working piston engine Features cool racing design, spinning rotor blades and moving engine pistons Race your friends! Spin the rotor! See the pistons move! Measures over 3" (9cm) high, 7" (18cm) long and 3" (8cm) wide Plane measures over 3" (8cm) high, 10" (26cm) long and 8" (22cm) wide