Z-STAR XV provides maximum ball speed for unmatched driver & iron distance. Its premium 3-peice construction gives skilled players complete tour performance, tee to green. A newly formulated core starts soft in the center and dramatically becomes firm around its edge, giving high speed players exceptional feel and plenty of ball speed for maximum distance. A new durable coating, new Spin Skin+ digs deep into wedge & iron grooves, maximizing spin for better control and stopping power. Swing Speed: 100+ MPH. Launch: Mid-High