The Tumble 'n' Treat Ball is a great interactive way to provide food and treats. It is suitable for rabbits, guinea pigs and similarly sized small animals. The toy dispenses treats as it rolls across the floor. The small animals will eventually learn that they receive a reward for tumbling the treat ball keeping them occupied for hours. The Tumble 'n' Treat Ball features a carrot design with an adjustable opening which can be used to control the amount of treats dispensed.