The Best Tennis Ball Trainer for self-study (2pcs)

Practice Tennis anywhere, anytime! This is your personal tennis trainer that you can carry anywhere. It doesn't take a lot of space and very easy to use. It doesn't matter whether you are a beginner or intermediate player, this gadget is going to help you to perfect your tennis skills.Tennis is a kind of sport that you have to play with a partner. What if you want to practice it but don't have a partner? This device is perfect for training alone.Tennis Trainer is a very simple but yet effective tool that will bring your tennis skills to the next level! Features A great device to practice your strokes, develop a faster swing speed, or simply warm up Great for driveways, garages, basements, or bring it to the court with you! Rubber cord is 15 feet long and stretches to 30 feet for hard-hit balls. To shorten the rebound, wrap some of the cord around the base to your desired length Anti-slip hole molding design can fill in the heavy objects to train.  Using PE environmental material a