Lennox Lifebound Collagen Bully Sticks Natural Dog Chews are highly digestible collagen-based dog chews that support joint, coat, and skin health. These six-inch sticks are made from the inner layer of beef hide (collagen) instead of traditional rawhide, making them easier on the stomach yet still long-lasting. They have a dense texture dogs love to chew and can help reduce plaque. This bulk pack ensures a plentiful supply of natural, grain-free chews with beneficial collagen peptides for your pups. Available in Multiple Sizes and Pack Options