Director and inventor of the Tri-tennis®!This new product makes playing tennis and similar sports possible everywhere, and for amateurs and professionals!Tri-tennis® is a playing pitch made of weatherproof sailcloth that is attached by springs to a galvanized-steel frame. When you hit a ball against the canvas it always returns with the same speed, irrespective of the speed of the serve, and at just the right distance for your next volley. Upon hitting the ball, Tri-tennis® gives you sufficient time to prepare for the next stroke.The Tri-tennis® is suitable for various playing styles and even for a variety of sports. It can be set up on every kind of surface and in all weathers. It is also ideal for all ages and abilities, making it a really handy device for tennis trainers. In addition, the Tri-tennis® is suitable for children just beginning with tennis because it is possible for several children to play at the same time.http://www.Tri-tennis.com