Penn Control + Tennis Balls (U-10) (Bag 12X) Color:NA is the ideal string for

is the ideal string for the new Extreme racquets

If you want to wear the KneedIT on both knees

ProBandʼs KneedIT also may improve patellar tracking

it gently applies pressure to the joint liner and patellar tendon and aids in pumping soreness away

Penn Control + Tennis Balls (U-10) (Bag 12X) Color:NA is the ideal string forIdeal for advanced beginning players ages 9+ who play on a standard 78 tennis court. The Penn Control + Tennis Balls reduces speed by 25% for greater control and longer rallies. With premium high visibility felt for exceptional durability, the Penn Control+ ball is also enjoyable for adults who require a slower playing tennis ball. All Penn QST products are USTA and ITF approved and endorsed by the PTR.