Light: blue light Material: plstic, battery, LED light, rubber band How to use: Fold the blades into spiral shapes Hold the tail of the flier with right hand, stretch the rubber band tightly with left hand. (Notice: Do not point it to any people.) Let off your right hand, then the flier will fly up to 20 meters. The flier can be spinning and fall down softly. It is amazing with the LED light. It is just like a flashing mushroom floating from sky to earth. The flashing flier is very hot. Nobody especially kids, children or even adult can reject such kind of novelty toy.