These uniquely coated chews offer an abrasive texture to help clean your dog's mouth and freshening breath while preventing long-term damage to teeth and gums. Made from North American beef hide. The hide is cut, cooked, and coated with a palatable poultry flavor. The surface of each single-layer rawhide chews is coated through a unique process with a blend of two enzymes (Glucose Oxidase plus Lactoperoxidase (from the Dried Whey Protein Concentrate). Made from beef hide that has been perfectly cut and dried. Each bag contains 30 enzymatic chews to keep your dog's mouth healthy a fresh for a full month. DuoClenz Rawhide chews help keep teeth clean and freshen breath. Plus, they are poultry flavored, which dogs will enjoy. The rawhide's abrasive texture, coated with a blend of two enzymes through a patented process, helps prevent plaque and tartar build-up. A bursting effect allows for faster-acting dental cleansing, promoting good oral hygiene in all breeds of dogs. DuoClenz is available for small dogs (0-11 lbs), medium dogs (12-25 lbs), large dogs (26-50 lbs), and extra-large dogs (51 lbs).