Penn Control + Tennis Balls (U-10) (Bag 12X) Color:NA ProBandʼs KneedIT also may improve

ProBandʼs KneedIT also may improve patellar tracking

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

high-performance string

Meticulously crafted with unparalled precision and cutting-edge technology

AEROREADY moisture wicking technology for comfort

Penn Control + Tennis Balls (U-10) (Bag 12X) Color:NA ProBandʼs KneedIT also may improveIdeal 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.