Made From U.S. Feeder Cattle. Improves Dental Health By Helping to Scrape Away Plaque, Control Tartar Build-Up and Maintain Gum Health. Provides Stimulating Activity By Entertaining Your Dog for Hours and Keeping His Mind Stimulated. Satisfies Your Dog S Innate Urge to Chew, Helping You to Avoid Destructive Chewing Behavior From Both Puppies and Adult Dogs. Relieves Your Puppy S Teething Pain and Stimulates The Growth of Adult Teeth. Size: 10-11. 1 pack.