Downtown Pet Supply Beef Tendons are 100% All Natural beef and always free of hormones. These Beef Tendons are low in fat and do not contain artificial flavors, colors, chemicals or preservatives. The Beef Tendons are high in protein, vitamins and minerals. Furthermore, they are USDA & FDA Approved. They are low odor and help to keep your dog's teeth and gums clean and strong. Great treat for chewing and pieces do not splinter or break off, completely digestible. DOGS LOVE THESE!