Penn QST 60 - 12 Pack men Fabric: 91% Nylon/9% Lycra

Fabric: 91% Nylon/9% Lycra

These balls are great for ball machines as they are pressure-less and designed to last

S and Lite models in both the Graphene Series and the new 360 Series

Gauges: 17 (125)

pressures and moisture for maximum protection

Penn QST 60 - 12 Pack men Fabric: 91% Nylon/9% LycraIdeal for advanced beginning players 7 8 years of age 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. Style #: 521920 Read our blog on why junior sized tennis balls are important.