Available in either nylon or poly material. The nylon netting is the strongest and most durable material available, while the poly netting is great for low-to-moderate outdoor usage (especially for young players). Premium nylon batting cage nets have a lead core rope around the perimeter to keep the netting in place and a flap door (a 3-foot overlap) that allows easy but safe access to the cage. Our premium nylon cages will have a longer life with an included 12 x 14 backdrop net sewn into the top of the cage. Not only will your cage last longer, but athletes behind the batter will be better protected from missed balls. The standard poly cages do not include the above mentioned items.