Canadian Brand. Parker's Treats Beef Trail Mix is a Canadian made product using 100% Beef. Which includes a delightful mix of beef sticks (pizzle), trachea, esophagus, weasand and tripe. Parker's Treats Beef Trail Mix provides a healthy, delicious snack that will keep your dog’s tail wagging. It’s the perfect mix for dogs of all sizes! Treat your dog to a variety of textures with this Beef Trail Mix. This mix is perfect for training, rewarding, or just giving your dog a tasty snack. Guaranteed to be fresh, nutritious, full of flavor and is suitable for all chewers, all size dogs.