Dark Wings Rubberband Powered Ornithopter

Construct a rubber band powered ornithopter that flies by flapping its wings and simulating the fluttering sound. The carbon fiber structure provides extra strength while keeping the ornithopter light weight. It is a very hands-on craft model kit. Apart from installation, you can also set the flying trajectory by adjusting the weight on each wing and the angle of the tail. You can also learn the magical and precise mechanism that drives the wings.