Penn Ball Tube Replacement Cap footwear-size-13 ENGAGE CORE: Made of an

ENGAGE CORE: Made of an innovative new plastomer material that maintains liveliness 4x longer and produces a more consistent bounce than a standard core

The Silicon Oil infused grommets reduces friction between the strings and grommets thereby improving snapback of the strings which increases spin potential even further than before

Embroidered Nike swoosh on each wristband

Material Construction: Co-Polyester

Although it is not the most durable string

Penn Ball Tube Replacement Cap footwear-size-13 ENGAGE CORE: Made of anSolid replacement cap in sleek black. If you have lost or damaged the caps on your Penn Ball Tube, then this is the perfect replacement. Colour: Black Style #: 588953