Dunlop's Competition 3-ball tube of Squash Balls offers great value for club play. With a 10 per cent longer hang time than the Pro (the world's no.1 ball and the only ball used in professional international competitions), it gives you outstanding performance for intermediate players. Dunlop are the Official Ball Suppliers of the PSA & WSF. The competition ball is a standard 40mm size. Size: H14cm, W5cm, D5cm. Manufacturer's 1 year guarantee. EAN: 5013317211149.