Review on 🎾 Penn Championship Extra-Duty Tennis Balls - 9 Cans, 27 Balls: Best for Longer Matches by Justin Gomez

Maybe I've never received a bad batch so I'm not sure what other consumers complain about flat balls when they open them, but I always take Penn balls just in case. They last long enough to last through a USTA match or just a practice game, so that's all I'm looking for in a tennis ball can. People seem to have the wrong idea of playing with an old can after a few days, but I prefer to play with a fresh can to minimize the chance of tennis elbow and I can't stand flat balls that don't bounce properly when hit. .