Speed back baffler technology-re-engineered baffler rails and a low, back tungsten weight optimize turf interaction and lower the CG for improved launch and faster club head speed from any lie High strength 455 stainless steel face-thin, high-strength stainless steel maximizes face flex for increased ball speeds and distance across the entire face High MOI shape-a 10% larger club head increases MOI, while a lower toe and a square leading edge combine to promote a lower CG and improved alignment for increased accuracy and precision Back CG position-a fixed, interchangeable weight positioned low and back promotes high towering ball flights and maximum forgiveness