A safe dog chew that is extremely durable and great tasting. Designed in the shape of a femur bone with texture for easy grip, and available in a yummy chicken flavor or delightful wood scent. Hero Bonetics is made of a scientifically developed wood-infused nylon material that is strong enough to last and soft enough not to splinter, making it a safer choice for your dog. Sized for small dogs up to 25 lbs. Sized for medium dogs up to 45 lbs. Sized for large dogs up to 65 lbs. Sized for extra large dogs 75 lbs and over.