5pcs Magic Butterfly flying Card Toy

Features: Fun Gift - Hide it in the pages of the book or in the greeting card or in a gift --- flying out of a colored butterfly. It's not meant to be a huge surprise when opened, but it does offer a bit of flair or drama to a moment like a birthday greeting. How to Use -No battery required, rotate its wings (rubber band) and then clip it between pages.  Education for Kids - Is a good way to encourage children to explore the fun of physics. Package Included - You will get 5 pcs of the same or random color butterflies in one set. Made in the USA. Package Included: 5 x Magic Flying Butterflies Product Features- Package: 5 pcs butterflies in one pack.- Size: 4.78in Width* 5in Length- Notes: Colors may be the same or random------------------------------------------Amazing!-Why the butterflies can fly?-Wind Up Toys learning from the dynamic principle of the clockwork.-Is a good way to encourage children to explore the fun of physics.------------------------------------------How to use i