A fun pet ball to keep your dog mentally and physically stimulated! Fill the ball with your dog`s favorite treats or food Ideal for medium to large sized dogs Adjust difficulty level as your dog learns Rolls on the floor and treats spill out IQ Treat Ball For a challenge that’s filled with tasty fun, try the IQ Treat Ball. Fill with treats or kibble, set your desired difficulty level using the ball’s adjustable interior insert, and let your dog roll the ball across the floor to try to release the food inside. Available in 3” and 5” sizes.