The SKLZ 'PowerBase Tennis Trainer' lets you practice tennis alone in a realistic way. SKLZ's low-tech gadget uses a mounted base combined with a kinetic cord to give you the ultimate solo tennis experience. As a result, you can practice for hours on your own terms without bending to the whims of others. An elongated cord keeps the tennis ball coming back to you so that you can improve your game in a dynamic way.
The PowerBase Tennis Trainer was built to improve your speed, stamina and hand-eye coordination. The no-tangle Kinetic Cord attaches to a tennis ball so that you can practice any stroke without going through the hassle of retrieving a ball. After smashing the tennis ball, the long cord allows the ball to fly before bringing it back to you.