Best Bully Sticks Prime Thick-Cut Cow Ear Dog Chews (12 Pack) 100% All-Natural Beef: Made from Free-Range, Grass-Fed Beef No Bleach or Chemicals: our Cow Ears are Minimally processed, as nature intended. Safe Alternative to Rawhide: Our dog treats are Free of Additives and Chemicals Great Treat for All Size Dogs Low in Fat and High in Protein: Supports a Healthy Diet and Active Lifestyle