The Full Bull Tail, a top-pick for dogs! Prepared by steaming and stuffing bull tails with Cheek Meat, this treat is long-lasting and easily digestible. Made from 100% pure beef cattle sourced from grass-fed South American beef cattle, it's free from steroids, hormones, and antibiotics, without any artificial preservatives, colors, or flavors. 100% pure beef cattle, derived from grass fed animals that are raised without the use of steroids, hormones and antibiotics, and contain no added artificial preservatives, colors or flavors.