The Penn QST 36 Quick Start Felt Ball is ideal for juniors aged 9 and 10 just getting started on their tennis journey who are looking to get a feel for the game.

Due to the ball's low compression core, the bounce and speed of the ball are much easier to predict and control which makes it great for maintaining longer rallies for better training. The Penn QST 36 is a great option for fun tennis drills and hand eye co-ordination exercises with young players.

Penn QST 60 Orange/Yellow Felt Quick Start Tennis Balls 12-pack

Ideal for advanced beginning players ages 9 and 10 playing on a 60’ tennis court, the QST 60 features a low compression core allowing greater conrol for longer rallies. With high visibility orange and yellow felt, the Penn QST 60 is also enjoyable for adults who require a slower playing tennis ball.

Approved by the US Tennis Association, the International Tennis Federation, and endorsed by the Professional Tennis Registry.