Review on 💪 Enhanced Balance and Movement with Oncourt Offcourt Flex Trainer – 3 Resistance Levels Available by Tyrone Carter

I personally don't use the Flex Trainer, but my daughter uses it regularly for tennis. She totally loves it! The taller you are, the tighter the elastic drawstrings will be at your waist. This allows you to hold the ball even lower when playing tennis. I recommend this product for tennis players who want to keep the ball low and turn perfectly. It may seem a bit strange at first, but it's really effective. As a tip, I would recommend wearing taller socks so the velcro straps at the bottom don't cut into your feet. Enjoy!