Chunky Chews&reg; 8"x2.5" Natural Rawhide Roll for Large Dogs 100% Premium Rawhide. Up to 3 times heavier than bones of the same size. Made with grass-fed free-range beef hides. Antibiotic & hormone free. Contains Conjugated Linoleic Acid (CLA) an Omega-6 fatty acid for healthy skin and coat. Designed for big dogs and aggressive chewers.