The Srixon Z-STAR DIAMOND 3 Golf Balls blend the ball speed and distance of the Z-STAR XV with a slightly thicker cover for exceptional spin and control on approach shots. The FastLayer Core is soft at the center and firm around its edge, giving high-speed players exceptional feel along with plenty of ball speed for maximum distance. A thicker urethane cover with Spin Skin and SeRM digs deep into wedge and iron grooves, maximizing spin, control, and stopping power, plus increased spin on long and mid-iron shots for better approach control. The 338 Speed Dimple Pattern reduces drag and boosts lift for added distance, keeping flight true even in tough wind. Trusted by PGA Tour pros, the Z-STAR DIAMOND is the ideal ball for high-speed players who want to hold the green from anywhere on the course.