This is a versatile cat and dog universal leaky toy. Without the need for an electric drive, the toy wheels are designed to move on their own while pets are playing. The self-weight design at the bottom of the toy adopts a self-weight balancing system, which will not tip no matter how it shakes under the external force of the pet's play. And there is a leaky food hole in front of and behind the product, which drops snacks during the pet's play, increases the pet's interest in playing, and improves iq.