Himalayan dog chews are healthy and nutritious. Made of a very hard cheese of yak milk they are an all natural long lasting dog chew treat. These are an excellent supplement for dogs of all sizes and ages and make a great in-between meal teeth cleaner. The chews are near perfect for your dog as they are low odor, natural, long lasting - hard but not to hard and non staining and healthy. When chewed they can give off a low odor smell of smoked cheese and can last your dog for hours.