EXCLUSIVE CHEWS FROM ANCIENT RECIPE - These are ‘A’ grade Yak Chew™ sourced from the Himalayas that sink into dogs teeth. This is ancient tried and tested recipe from the mountains of Nepal. These are totally natural and very nutritious dog chews made from yak's and cow's milk. Milk is processed to remove Lactose and make the chews easily digestible and very gentle for sensitive stomachs.