OurPets Whirling Wiggler Spinner Cat Toy was developed to indulge your cat's inner hunter. It's not uncommon to see cats lunge, jump and dive after insects and butterflies. The OurPets Whirling Wiggler allows your cat to stalk and hunt safely with each movement and vibration. It's also great for cats that need to stay occupied and need a litter extra exercise! The double butterflies allow this toy to have two flight modes, chase and play with a quick adjustment of the slider.