"Spent decent money on this for my son and then hoping to use the propellers in other builds. However, the two helicopters have ZERO Lego parts/places to connect parts. They are essentially plastic toys you might find at the dollar store. The most aggressive adult tug will get these things about 2 feet in the air. So basically a tiny LEGO set with a plane, and two plastic toy helicopters that don’t really fly. Been buying legos for 20 years and as disappointed with a set as I’ve ever been."