180 degree alignment aid, Durable print won't rub off. The Mizuno RB Tour golf ball is a high-quality golf ball that offers excellent performance and feel. It is designed for players who demand the utmost precision and control. When players demand the highest level of performance from their equipment, they turn to Mizuno RB Tour golf balls. Mizuno's engineers have created a ball that maximizes distance and trajectory while providing the soft feel and spin control that better players need out on the course. The result is a ball that offers the penetrative trajectory of a distance ball with the exceptional feel of a Tour ball.