Traditionally made and enjoyed for centuries by the people of the Himalayas, 100% natural hard cheese is now available as a long lasting chew for dogs! These chews are proudly made in Europe using 100% cow milk, thus adhering to high standards of production whilst still using traditional Himalayan techniques. Yak Snacks are:- Long Lasting (Note no guarantee on how long they will last. They are softer than the likes of antler, but much tougher than most regular dog chews) 100% Natural – It is simply cheese derived from 100% cow milk No artificial preservatives or colourings Grain & Gluten free Rich in Calcium & Protein (over 60%). Virtually lactose free Handmade Zero waste – when the chew gets to be very small, pop it in the microwave for 30-45 seconds until puffed, and feed to your dog as a tasty puff chew.