KONG Liver Snacks are made with delicious flavor for a biscuit that is delightful for dogs. Made in the USA, these high-quality treats are all-natural and do not contain wheat, corn or soy giving them an irresistible flavor that is great for any treating moment. Irresistible and delicious liver flavor great for any treating moment Ideal for any treating or training occasion. All-Natural and Made in the USA. Great for stuffing into KONG Classic and rubber toys for extended play.