The Playology Durable Dual-Layered Bone Chicken Scented Fetch and Chew Rubber Dog Toy in yellow is scientifically designed to keep dogs engaged up to 7x longer than unscented toys. This bone has a chewy outer layer and a hard inner core, mimicking the texture of real meat on bone to satisfy your dog’s chewing instincts. As your dog chews, tiny bursts of all-natural chicken scent are released, continuously enticing them without any calories or mess. The small size is perfect for little dogs while the Medium size is for Medium-to-Large sized dogs, and the durable construction helps clean teeth and gums through the act of chewing. Available in Multiple Sizes