1. Hold one end of the twisty fly and twist the other end at least 35 times. ( Storing of POTENTIAL ENERGY ) 2. Slip it between the card provided. 3. Open the card and watch the butterfly come to life! ( Release of KINETIC ENERGY enabling the butterfly to 'fly' ) Available Colour : Red, Purple, Orange, Yellow Great for party gifts, door gifts and goodie bags. Only available from Play N Learn, reliable and trusted educational toy store in Singapore!