Designed to clean your dog's teeth as he chews and provides him with essential vitamins and minerals for a balanced diet. Bristles and grooves wrap around teeth for greater surface area. Chewy texture promotes teeth sinking into the treat all the way to the gum line for a more thorough clean. Knuckle ends for increased hold and easier chewing. Not intended for dogs less than 5 lbs. or less than six months of age. Available: 12 oz., 27 oz., 36 oz.