Highly interactive: : Two balls that revolve around the track and the cats stick attract cats to scratch and play. The tumblers structural design can rotate 180 degrees on the ground without consuming batteries. . Windmill toy: : When the cat is playing, you can let the propeller on the top of the toy spin freely with gentle force. During the process of learning to use the toy, it can effectively improve the cats intelligence and alleviate the cats worries that the cat is not accompanied by the owner. . Leaking Food Toys: : A light push can leak food, slowing the cats eating speed, delicious and fun, and the cat is healthier. . Safe and durable: : The upper and lower parts of the tumbler toy are made of PP, which is environmentally friendly and easy to clean the transparent PC material in the middle allows the cat to see the snacks inside and is easily attracted. . Notes: : The maximum diameter of the food distribution hole can be adjusted to 2cm. The added food should be smaller than this diameter, or the food should be cut small and put in please put dry granular food instead of sticky food. .