LEGO Creator 31020 Twinblade Adventures Features turning engines, large spinning rotor blades, dual tail fin, engine exhaust detail, cargo hold and a ramp Adjust the engines for lift-off or smooth forward flight ; Lower the ramp to access the cargo hold Twinblade aircraft measures over 2" (6cm) high, 6" (17cm) long and 7" (19cm) wide Biplane measures over 2" (7cm) high, 6" (17cm) long and 7" (18cm) wide Helicopter measures over 2" (7cm) high, 7" (19cm) long and 2" (6cm