The hunt is on with the Pet Zone Fly By spinner toy! The Fly By brings the wild inside with a flying action that replicates the movement and fluttering of a real butterfly. It’s not uncommon to see cats lunge, jump, and dive after insects and butterflies. Fly By allows your cat to stalk and hunt in a safe and engaging environment. When you flip the switch and turn the toy on, your cat will experience stimulating and interactive play providing healthy mental and physical stimulation.