Bridgestone J815 Driver Power Rib sole provides increased rigidity for 460cc F.A.S.T. (Flex Action Speed Technology) Crown to flex against: Maximum ball velocities through increased repulsion Highest launch angles through increased crown deformation Power Milled face provides incredible spin reduction Low and deep center of gravity produces forgiving high launching distance Variable Adjust System lets the user choose their desired face and lie angle setting Lofts: 8.5∞, 9.5∞, 10.5∞, 12∞ Mitsubishi Fubukiô ZT Driver Shaft Specifications: Bridgestone J815 Driver Loft Lie Angle Length S/W Volume 8.5∞ 59∞ 45.0" D2 460 cc 9.5∞ 59∞ 45.0" D2 460 cc 10.5∞ 59∞ 45.0" D2 460 cc 12∞ 59∞ 45.0" D2 460 cc