Use your imagination as you explore the world of real engineering with the meccano 20 model aerial rescue set build 1 of the 20 aerial models including a helicopter then take it apart and build a different one after that itrsquos up to you and your imagination to create a vehicle of your own design this real working aerial rescue set comes with 406 parts 2 ergonomic tools and easy to follow instructions explore the mechanical wonders of the world with the 20 model aerial rescue set the