Wild Eats Bully Tails are made from natural water buffalo, which are free range & grass fed for the highest quality chew. Bully Tails are high in protein while remaining low in fat, satisfying your K9’s natural cravings. The natural texture helps to clean teeth & gums as your pet chews, which aids in overall dental health. Wild Eats Bully Tails are gluten free & grain free.