Z-STAR provides maximum greenside spin for unmatched control and stopping power. Its premium 3-piece construction gives skilled players complete tour performance, tee to green New FastLayer DG Core A newly formulated core starts soft in the center and dramatically becomes firm around its edge, giving high-speed players exceptional feel and added approach shot spin. 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 Pattern Less drag and more lift boosts overall distance and flies straight, even in the toughest wind conditions.