BRAVO! bullies are from grass-fed bulls, not steer parts, so they are stronger and one and a half to two times thicker than standard bully sticks. This makes for a much longer lasting chew. Bullies don't splinter or break up when chewed, which means they are safe for strong chewers. And you'll be pleased to know that they don't leave stains on furniture or carpets. Dry roasted in BRAVO's USDA-inspected facilities from US or New Zealand cattle.