AAE's BallStopper Football Netting keeps balls in play, preventing them from reaching the stands or leaving the stadium. The four-post aluminum design installs into included ground sleeves, with a pulley system for easy net adjustments. It features durable 3-½" square knotted black nylon netting, with an optional 1-¾" square net for multi-sport use. Available in 35' and 40' heights, with a standard mill finish or optional powder coating.