Make sure this fitsby entering your model number. Turbocharged cup face: The new turbocharged cup face, enhanced with a new variable face, provides higher COR over a larger impact area for increased ball speeds and more distance. HI bore Crown: The redesigned HI Bore Crown lowers the center-of-gravity (CG) by 2. 2mm, enabling a lower CG position for optimal launch conditions. Deep weighting: discretionary mass savings positioned for significant increases to MOI, delivering more speed. Ultralight housel: external and internal weight reduction, redistributed low and deep for a higher launch and more forgiveness. Counter balanced shaft design: specifically designed for the launcher HB Turbo driver, the MIYAZAKI C. Kuma center of gravity is relocated higher toward the grip, enabling additional head mass for increased MOI.