Description: How to operate: your left hand hold the butterfly tail do not move, spin the butterfly band by clockwise, then release your hands, they will fly to the sky. These wind up butterfly design with beautiful color and pattern. Just like real butterflies. These butterfly is small and flexible for great parent-child interactive tools, you can play with your kids together. You can switch power band and put them in a book, or a card. When children open the card or a book, the beautiful butterfly flying out. Perfect for wedding invitation, greeting card, letters, party and Valentine& 39;s Day, she /he will never forget this moment. Specification: Material: Plastic Size:11.5x14cm/0.38x0.46inch Package Includes: 10 Pieces Flying Butterfly - Color is Random Shipment(4 Pack) Note: Please allow slight dimension difference due to different manual measurement.