Mizuno ST-MAX 230 Driver 9.5 UST LIN-Q Red M40X F3 Regular (No H/Cover)
Shaft UST LIN-Q M40X 5. Engineered for stability, Mizuno'sST MAX 230 Driver features an expanded CORTECH Chamber and 54 grams of back weighting, making it the most stable driver ever produced byMizuno.