Metal-X Insert. Lightweight aluminum outer layer?s oval depressions maximize the mechanical lock with the golf ball dimples. Creates a lower launch with optimized topspin for reduced skidding and the truest roll in the game. * Midnight Black Finish Premium, high tech process produces a durable, glare reduction finish Added specifically based on feedback gathered from Tour players * Headweight Optimization Tour-tuned weight ports in the sole optimize the putterhead with the shaft length Creates the ideal balance to maximize feel, control and accuracy * Lamkin® 3GEN® Pistol Grip. Thin, smaller pistol shape appeals to better players. Made of Lamkin?s proprietary 3GEN material, which is their softest synthetic rubber compound and reduces vibration without dulling the feel of the putt.