Review on 🎾 AXTON Solo Tennis Trainer Rebound Ball Set with 3 Tennis Balls and String – Tennis Practice Equipment with Bonus Overgrip by Joshua Days

I'm sure this will be a useful resource for practicing groundstrokes, but it came with a little damage to the base and one of the balls had no label. These were small details that I wanted to overlook just to use them, but after 20 minutes of trying I can't unwind the string and it starts to fray. All other balls are also wound in the same way, the stick is wound inside. It looks very neat when wrapped up, but it's impossible to easily unwrap it. Very disappointed, can't use it, will come back.