Go! Cat Go! Play-N-Treat Balls are designed to provide your cat with an interactive toy that it can chase, pounce on and jump at. These toys will provide your cat with hours of activity and enjoyment and youll find yourself captivated as well, watching your pet chase these balls. The treats or catnip inside the ball will reward your feline pet for their activity and skill. Inspired by a love of animals, and a desire to create innovative products that encourage mental and physical activity, OurPets has been in business since 1995. Their unique products reflect the numerous hours of study that have been applied to help stimulate your pets health through both nutrition and activity. Benefits: Fill with catnip, treats or food Easy to clean Promotes activity Challenging.