Himalayan Everlasting Dog chews are 100% natural, long-lasting dog chews that are handmade from the milk of yak and cows from the Himalayan region. They are gluten-free and do not contain any chemicals, filler ingredients, or artificial preservatives. These chews will entertain your dog for extended periods of time and they are a great source of protein. Available in four different sizes for just about any dog breeds.