Made by the renowned John Jaques of London, the oldest game and athletic equipment manufacturer in the world, this tennis trainer hones tennis skills without the need for another person, reloading ball machines, or chasing errant shots. Suitable for setup on a driveway or lawn, the unit uses a regulation tennis ball tethered by elastic to weatherproof steel poles. As you hit the ball, it will rebound with considerable force, testing your reflexes and ability to maintain a rally. The trainer allows you to practice serving, forehand and backhand shots, and drop shots with the same mechanics that are required during an actual match. The poles stake into the ground 10' apart. For ages 3 and older. Minor assembly. 9' H x 10' W.