A multipurpose target trainer, featuring a tennis ball target, a small rebound panel target and a with a catch net behind so that your players can see the balls they successfully aim. 

And no disputes! When you're ready, simply open the catch net drawstring, empty the balls and count. For team challenges, use different ball colours.

The design also let you use the target at full frame height (so you could use it behind a tennis net, for example), or at a lower height for younger players.  

At the lower height, you also have the option of using the raised side poles as a further target.