As a regular squash player I've sampled many makes and varieties of squash ball over the years, yet I always find myself returning to Dunlop's offerings. This is not only because Dunlop is seen as the premier squash ball manufacturer, but also because Dunlop balls are hardwearing and reliable. Dunlop make a variety of balls, each one tailored to suit a different experience level. The 'Max' ball is aimed at the beginner - it's blue in colour and bigger than the regulation size - it also has a higher bounce, and therefore is easier to hit. The standard 'Competition' ball is black in colour and has a single yellow spot - this one is predominantly used by the club players and features a lower bounce. The most difficult ball to play with is the 'Pro' ball which has a double yellow marking and is the least bouncy of the lot.
Like all squash balls, you'll need to warm up your Dunlop Pros before use, by hitting them firmly against the back wall of the court until they're reached their required temperature. Once warmed, I've found that these balls have a consistency of bounce and speed - essential if you take your squash seriously. In terms of their longevity, Dunlop Pro Balls (and in fact Dunlop balls in general), are arguably the toughest that you can get. After a while, squash balls have a tendency to split, resulting a low bounce - and with the cheaper balls splitting can sometimes occur after only a few sessions. In my experience I've found that the Dunlop variety are tough cookies - in fact, i've been using the same Dunlop Pro ball for the last four months; impressive considering the fact that I play squash at least once a week.
Nowadays I *only* use Dunlop Pro balls, they last a long time and ultimately offer very good value for money; because of this there's no reason for me to switch to another brand - highly recommended.