The Dunlop Progress Squash Ball is intended for the recreational player, who has already taken his first steps on the court. This squash ball with red dot is 6% larger and stays in the air 20% longer than the Dunlop Pro ball (2 yellow dots). The Progress is the perfect ball to further improve your technique and game. The progress squash ball is most often used for training and recreational squash. The ball does not need to be played warm and has been approved by the Dutch squash association.