A device which dispenses pellets when rolled by an animal includes a central part having two cylinders, one of which is nested inside the other, which are equipped with holes of the same size. All or some of the holes in the two cylinders can be aligned more or less completely by manually rotating the external cylinder around the internal cylinder, such that a given number of pellets are released from the central part each time the device is rotated. The device also includes two wheels, one of which is equipped with a stopper. The two wheels are fixed to the ends of the internal cylinder by screwing or gluing and with the aid of a double bayonet, and the cylinders are maintained in the selected relative position by a gear tooth system. The device is particularly suitable for use as a toy, for exercise and to slow down ingestion.