Amazon has LEGO Technic 42020 Twin-Rotor Helicopter Model Kit for $12.97. Free shipping with a $35 order or free 2-day shipping with Amazon Prime.
- Features linked spinning rotors, turning front wheel, opening cargo door and a cool rescue-theme design
- Get familiar with the versatile Technic building elements
- Taxi along the ground, spin the rotors and take off Rotors are connected with gear wheels and spin together
- 2-in-1 model: rebuilds into a single-rotor helicopter
- Twin-rotor Helicopter measures 3" (8cm) high, 8" (22cm) long and 5" (13cm) wide