The world's top coaches all give one common instruction: Hit the ball over the net! The Airzone System takes care of this problem without verbal instructions! The package includes 2 telescopic poles, bungee and winder, Airzone net and drill booklet, all in a durable and convenient carry case. First portable, lightweight air target system. Sets up in minutes: no tools needed. Raises net height with another net or bungee (both items included in the package) to guide players to hit with more arc. Higher arc translates into 67% more depth on groundstrokes to drastically reduce the number of balls hit into the net. Weather-resistant telescopic poles allow for any adjustment in net height, up to 7 feet. The bungee component allows players to drill either over the bright yellow line or under, depending on the shot being practiced. Includes detailed game and drill booklet.