Wonder Bound Single-Ingredient Cow Ears are long lasting, highly digestible and downright delicious. Sourced from cows raised without added hormones or antibiotics, our cow ear chews are made of only 100% premium quality beef and slow roasted for optimal flavor. Their durable texture supports dental health by removing plaque and tartar as dogs chew while providing hours of gnawsome delight. They're a minimally processed and tasty reward your dog will love.