Our propeller machines with rubber motors are brilliantly simple: they fly very far and the motor doesn't need any electricity at all. This is because it gets its energy from a rubber band attached to the propeller. To protect these little powerhouses during landing, we've reinforced them all around. Before takeoff, you wind the propeller by hand until the rubber band inside the plane is fully stretched. And off you go! The propeller starts powerfully, and the rubber charge is enough for a really long flight. Packaged in a cardboard box. Size: 25 x 22 cm. Made in Germany.