Gamma Hoppette Ball Hopper Value Pack - Tennis Balls Included Reviews

My kids are taking tennis this year, but with only one hour 2 times a week and like 15 kids per instructor to be honest they are not learning all that much in the class.  So I decided that after they had class time with the class then I would play with them and help teach them for a half hour or an hour depending how tired they are and how hot it is.  Of course since they are new at playing tennis they tend to hit a lot of balls all over the place.  I know that when you play with beginers you either need to have a lot of balls or spend the entire playing time chasing down balls that were mis...