Built for big dogs who love a challenge! XL Yak Chews provide extended chewing satisfaction while naturally promoting clean teeth and healthy gums. All Natural Ancient Himalayan Recipe for dried yak cheese 100% digestible Long Lasting Unwrap this delightful bar of golden cheese crafted using an ancient Himalayan recipe and ready for some nibbling. A perfect treat for your pup, this cheese is a hard consistency and provides about a weeks worth of chewing pleasure. If you and your dog are feeling like a little fun, put the small bits that come off the yak chew in the microwave – the cheese pieces will actually pop into crunchy cheese puffs! For a change of pace, yak cheese makes a great chew for your dog that packs a nutritious punch.