Amazon has the LEGO Technic Ultralight Helicopter Advance Building Set for only $13.99! (Reg. $20) This features a high-tech aerodynamic design, open cockpit with detailed seat, spinning main and tail rotors, controllable tail rudder, and a detailed engine with moving pistons. Keep in mind, Amazon pricing can change at any time! Don’t wait to purchase this deal or it might be gone when you come back!