Petmate (Fat Cat) Crazy Circle Cat Toy (Small, Purple) – A circular track toy that provides 360° of feline fun. Inside the durable ring is a rolling ball infused with catnip that cats can bat endlessly through paw-sized openings, satisfying their hunting and chasing instincts. This lightweight, no-battery toy encourages independent play and exercise, keeping cats engaged as they swipe at the trapped ball and try to “catch” it.