The Dunlop Pro Yellow Double Dot squash ball is the official ball of Squash Australia, World Squash Federation, Professional Squash Association, and Women's International Squash Players Association and the only ball used in all international professional competition.

Features
   
An Elastic Hydrocarbon Polymer is Impregnated with 12 Compounds Resulting in a Construction Material With Unrivalled Playability and Durability Characteristics
The Ultimate Performance Squash Ball for Professional, Tournament and Club Players