Volvik DS-77 s (One Dozen) Low driver-spin and longer impact time increases distance and minimizes unnecessary side-spin High velocity core for maximum ball speed Dual Spin core produces less driver spin off the tee and more greenside spin with wedges Soft Dual Spin core cover and 372 dimple pattern delivers increased flight time and reduces drag for more distance off the tee Soft core produces a pleasant soft feel and more accurate shot control and putting feel