With a blend of greenside control and longgame distance the new ZSTAR DIAMOND also delivers the unique benefit of increased spin on long and mid Iron shots. A newly formulated core starts soft in the center and dramatically becomes firm around its edge giving highspeed players optimized Iron spin and distance. A durable coating new Spin Skin digs deep into Wedge and Iron grooves maximizing spin for better control and stopping power. The 338 Speed Dimple Pattern creates less drag and more lift boosts overall distance and flies straight even in the toughest wind conditions. GlobalGolf.com online store offers superior selection service and quality for your Srixon golf Balls needs.