You can get a Free 4lb Zignature Dog Food with a coupon with you fill in a small form. There are only 500 free samples. Zignature® is formulated to serve your canine companion’s needs by delivering the highest quality, well balanced diets. Their limited ingredient formula uses No Potatoes, No Grain, No Chicken, No Eggs, No Glutens, No Tapioca, No Corn & No Soy.