- 3in1 toy. Kids can indulge in creative fun with the LEGO Creator 3in1 Supersonic-jet (31126) building set, featuring 3 models in 1: a jet plane, a helicopter and a powerboat - LEGO fans can perform stunts in the air with the jet plane and the helicopter and race on the water with the powerboat - The Supersonic-jet has a cockpit, angled wings and retractable wheels, while the helicopter has rotating blades and the powerboat features 2 superfast engines - Kids aged 7 and up can enjoy a quick and easy build with this 215-piece set before playing out stories with the 3 different vehicles - The Supersonic-jet measures over 3 in. (8 cm) high, 10.5 in. (27 cm) long and 6 in. (16 cm) wide