A safe dog chew that is extremely durable and great tasting. Designed in the shape of a branch stick with dual textures for easy grip, and a 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 medium for dogs up to 45 lbs. and extra-large for dogs 75 lbs. and over