Home Toys & Collectibles LEGO Technic Ultralight Helicopter 42057 Advance Building Set $15.99 Toys & Collectibles LEGO Technic Ultralight Helicopter 42057 Advance Building Set $15.99 By ARCOM - 13 February 2018 198 0 SHARE Facebook Twitter Go to the deal page: LEGO Technic Ultralight Helicopter 42057 Advance Building Set $15.99