MULTI-MATERIAL CONSTRUCTION Modern mallet putters designed with multi-materials for high MOI, stabilityand better roll. ENHANCED STABILITY Lightweight 6061 aluminum core paired with heavy 304 Stainless Steel frame,resulting in high MOI to consistently promote a square face to the path. PURE ROLL(TM) INSERT Based on robot testing of Pure Roll(TM) groove vs. solid face, Pure Roll insertincreases topspin and improves forward roll for distance control. BETTER SOUND AND FEEL Vibration damping PU foam embedded between the body and frame forenhanced sound and feel.