The practice net is made of top-quality material, knotless and tear resistant polyester netting, fiberglass tension poles, powder coated steel frame, steel ground stakes & weighted base. Sets up in minutes right out of the carrying bag.The bonus strike zone attachment can be quickly strapped in to improve your pitching/throwing accuracy, form and focus. Perfect for adults and children for tee work, batting, pitching, fielding, soft toss, catching practice and use indoor or outdoor.