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 peanut butter 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 medium dogs up to 45 lbs.