Canine Naturals Beef & Bully Chews are made from carefully sourced grass fed, free range cattle. These odor-free, long-lasting chews are best suited for heavy chewers and help remove plaque and tartar through chewing. With their great taste and collagen rich ingredients, Canine Naturals Beef & Bully chews are the healthy, safe, great tasting way to fulfill your dog's natural chewing instinct.