Penn QST 36 Foam Ball 3 Pack squash-strings All Penn QST products are

All Penn QST products are USTA and ITF approved and endorsed by the PTR

Although there is overall less playability than Wilson's multifilament strings

The midway point between polyester and natural gut

Reflective RED Fitness icon near side seam

A great versatile tank that you can also wear for any of your other favourite sports

Penn QST 36 Foam Ball 3 Pack squash-strings All Penn QST products areIdeal for beginning players 8 and under playing on a 36' tennis court, this lightweight foam ball has an oversized diameter for simple learning. Made of high density lightweight foam for a modified bounce, the QST 36 Foam is perfect for indoor court settings. All Penn QST products are USTA and ITF approved and endorsed by the PTR. Read our blog on why junior sized tennis balls are important.