ok...i hope you all understand this after some corrections.
hi all, i'm a product design student.i need some comments about tennis ball machine.
Thanks a lot for your answers!
1. who's the majority user of tennis ball machine?
( the pros ? club players? coaches? or....?)
2. Have you ever use any court equipments such as the hoppers, ball machine?which one do you prefer? WHY?
3. Do you have any problems while using it?
4. What are the aspects which you most considered?
( function? weight? aesthetic? price? brand?or.....etc)