The Pet Brand Rubba Tuff Star treat is a perfect toy for all your medium and large breed dogs. This satisfies the urge of chewing in your dog. They can play with this toy for countless hours. This bone is made of a flexible material that is challenging to your dog as you can add his or her favorite treats and kibbles to it as well. While, they are playing they can easily retrieve the treats, this provides the much needed brain stimulation also.