Product Catalog › Jack Link Duos Red Hot Buffalo and Ranch Beef Jerky 2.85oz Image 1 of 1 Jack Link Duos Red Hot Buffalo and Ranch Beef Jerky 2.85oz $0.00 Jack Link Duos is sold by the case or bag, each case has 8 bags. Quantity: Add To Cart Added! Jack Link Duos is sold by the case or bag, each case has 8 bags.