Trail's Best 1oz Twin Packs are the perfect snack with only 100 calories per serving. Each box contains 20 packs and each 4" pack weighs 1oz. Trail's Best 1oz Twin Packs are gluten free, contain no MSG, and are proudly made in the USA since 1985. Available in 3 great flavors (Beef & Cheese, Double Salami, and Twin Beef).