Satisfying both the need to chew and work for food, the Busy Ball is an epic interactive foraging toy for long-lasting, stimulating play. Once treats are loaded, your dog moves the ball to dispense kibble. The Busy Ball also features two slots for removable/replaceable Chew Perfect™ Bones - GURU's non-toxic, bacon-scented nylon chew material designed for your dog's safety and satisfaction. The Chew Perfect Bone is ergonomically shaped for comfort while chewing.