The Srixon Z Star Diamond Golf Balls are constructed with a reformulated FastLayer DG Core featuring a more aggressive soft-to-firm transition designed to boost ball speed and distance off the teel, while still maintaining great feel.. The Srixon Z Star Diamond Golf Balls is the ultimate mix of greenside control, superior approach spin, and long-game distance. If you’re looking to hold the green from anywhere on the course, DIAMOND is the ball for you.. Srixon Z-STAR DIAMOND 2 Golf Balls – Feature:. Designed for driver swing speeds above 90 mph. New FastLayer DG Core starts soft in the center and dramatically becomes firm around the edge, giving high-speed players optimized iron spin and distance. New Spin Skin+ durable coating digs deep into wedge and iron grooves, maximizing spin for better control and stopping power. 338 Speed Dimple Pattern reduces drag and increases lift to boost overall distance and provide a straighter flight, even in the most challenging wind conditions
