* Extra-duty ideal for hard court play and advanced training
* Natural rubber offers a consistent feel and reduced shock

Specification:
* Guage 65.7 to 86.7 mm
* Weight 56.7 to 58.8 g
* Elasticisty dropping at 2.54 m, rebounding back more than 1.4 m
* Materials: Fiber – Rubber
* Rubber and Interlocked wool fiber for longer wear; deep elastic seams prevent cracking
* Single can (3 balls)