Made from only the highest quality materials you can expect to get many years of training with this machine. The machine is shipped in 2 boxes and can be assembled in about 1 hour the 1^st time. Then it can be moved and transported with the attached wheels. Great for homes, garages or out on the courts. Unlike most tennis trainers hitting a ball on a string or hitting at stationary objects our tennis trainer is designed to be as realistic as possible to the real game. The balls fall from one of the two random holes at the top onto the stringed platforms to create different angles and strokes. Great for practicing forehand and backhand. Coaches can now keep their students busy while teaching skills to the others in the lesson. Since you are doing full tennis swings over and over again you will get great exercise. To pick up the pace switch off hitting forehand then backhand for an aerobic type workout. Developed by tennis professionals for the tennis market. All components were designed to maximize durability with portability. More experienced tennis players can use without the safety net. Space required is 8 foot tall X 13 Foot Deep and 8 feet wide. With safety net needs a space of 9 foot tall X 13 foot deep X 8 foot wide. See the images for detailed dimensions. Can be used in a bonus room of house, 1 car garage or outdoors.