Tasman's Natural Pet is proud to offer a unique line of all-natural Bison rawhide chews made from free-range US Bison Rawhides. Don't mistake these rawhides as typical as they are far from it! Free-Range Bison means no hormones or antibiotics are passed along to your pet and our chemical-free processing means no chemicals either! Great for dogs with allergies or for owners who want to provide their pet with an all-natural diet, even when it comes to treats!