This 20" knot is HUGE, the perfect size for your big dog. Pork Chomps are a revolutionary, safe, and healthy alternative to beef rawhide. Made of baked pork skin, Pork Chomps are easily digested and very flavorful. Provide a great way to clean teeth naturally and satisfy your pet's urge to chew. Plus, you'll love the fact that they won't stain your carpet. No artificial flavors or preservatives.