Keep your kitty in shape with the Slim Cat Sport Ball from Multivet! Overweight cats will particularly benefit from the Slim Cat ball as the idea is this ball distributes an adjustable amount of food whilst your cat plays with it. Fill the treat ball with your own choice of dry food or treats and let your car work off some energy by rolling the ball around! Designed with a cat's natural playful and hunting instinct in mind, the Slim Cat provides fun and exercise and alleviates boredom.