Review on Gamma Pressureless Tennis Balls: Durable, Reusable, Portable, Perfect for Practice, Training, Teaching, All Court Types, Premium Performance+ by Dave Albright

I had high hopes for them, but at the moment a satisfactory one would even be acceptable to me. I bought these along with the Wilson Club balls which I use with the ball several times a week. I've had them for two weeks now and am sending them back as they are no longer usable. The felt is the most frayed and is a complete mess and they have lost pressure making it impossible to use the machine with balls other than these which would still be difficult. In the normal setup, Wilson's balls are fine and the car is set up that way, but due to the lack of pressure on them, they won't even miss the net. .