Srixon Z-Star Diamond Golf BallsBLENDED DISTANCE & SPIN.With a blend of greenside control and long-game distance, the new Z-STAR DIAMOND also delivers the unique benefit of increased spin on long and mid iron shots.Features:NEW FastLayer DG CoreA newly formulated core starts soft in the center and dramatically becomes firm around its edge, giving high-speed players optimized iron spin and distance.NEW Spin Skin+A durable coating, new Spin Skin+ digs deep into wedge and iron grooves, maximizing spin for better control and stopping power.338 Speed Dimple PatternLess drag and more lift boosts overall distance and flies straight, even in the toughest wind conditions.Swing Speed: 90+ MPHLaunch: Mid-High SPECS:ConstructionCover MaterialCover ThicknessCompressionDimple Number3PCUrethane0.6mm102338