Replace your older golf balls with the SRIXON Z-Star Diamond 2 Series Golf Balls 12-Pack. The 338-dimple configuration limits drag and optimizes launch conditions, and an urethane elastomer cover combines speed and spin for exceptional flight consistencies. The polybutadiene core helps create more accurate distances off the tee. SRIXON Z-Star Diamond 2 Series Golf Balls 12-Pack White - Golf Balls at Academy Sports