Description 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. All Penn QST products are USTA and ITF approved and endorsed by the PTR. Low compression coreHigh visibility feltOrange ball for 60' tennis Court size
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