Design for Fun: This butterfly toy can activate your cat's predatory instincts to benefit from interactive play sessions. 360 degree rotation: The lightning butterfly can rotate 360 degrees. And this butterfly is always spinning, your cat can play with it when you are not around. Two butterfly refills. The toy comes with two spare butterflies so your cat can play with them for a long time. Healthy for Cats: Adds much needed exercise to your cat to keep them healthy, especially when a cat is indoors. For Paws Interactive Butterfly Cat Toy is a fun, interactive toy that simulates your cat's instincts. The butterfly spins through the air to lure your kitten to catch. It's an easy way for cats to get a little exercise indoors without leaving the house.