The Z-STAR SL is designed specifically for golfers that don't possess tour-level swing speed but demand the precision of a tour-level golf ball. The SL offers superior playability by balancing each aspect of STAR Performance technology (Spin, Trajectory, Acceleration and Responsiveness) to react to slower swing speeds. The result is a tour caliber ball with a high launch angle and exceptional greenside spin for golfers with slower swing speeds. The Z-STAR SL is available in both Pure White and Tour Yellow.