Project X Graphite:The all-new Project X graphite shafts are crafted with eight different premium composites including five of the best fiber types in the world. Each flex is built on a unique set of mandrels with distinct material lay-ups to achieve the optimum flex profile. This helps maintain the designed shape and performance characteristics of the shaft throughout the swing for consistent shot patterns, while each flex has a specific frequency, weight, torque and ball flight for maximizing a player's performance.