Collapsible Batting Tunnel 72' x 18' x 12' The perfect batting tunnel for those that want a standard sized tunnel but have limited space. Choose indoor or outdoor model in 72' length. Collapses to 2' for easy storage in less than two minutes. Features black 42 thread knotless nylon construction and strong, galvanized steel arcs. Each cage comes with detailed set-up directions and an instructional video. Please specify indoor or outdoor model.