CHEGIF Tennis Training Ball with String,Tennis Trainer Balls Self Practice Trainer Tool, Tennis Ball Training Equipment for Rebound Baseboard Self Tennis Training Tool

🎾Wide Range of Use :The tennis ball can be used for outdoor training, such as parks, tennis courts,back gardens. It suitable for Beginners Sport Exercise
🎾Package Includes: 4 packs of tennis training balls with string.
🎾Convenient to Use: The tennis ball with string is specially designed for single practice tennis training , it needs to be used in conjunction with a tennis trainer tool .They're easy to use, don't spend time picking up balls, and improve your training efficiency
🎾Wide Use: Tennis training balls are suitable for professional training and daily exercise use to improve your concentration, athleticism and hand-eye coordination
🎾Requires Attention: Tennis is a consumable item, it will be damaged after a period of use, which is a normal phenomenon. In order to effectively carry out tennis training, it is recommended to replace the tennis ball in time

Hello,