A low profile, wide footprint driver that looks noticeably larger than its measured 460cc. An expanded CORTECH Chamber and 54 grams of back weighting combine to create Mizuno’s most stable ever driver, with exceptional straight-line performance across its wide, inviting clubface. The ST MAX 230 driver unveils two new engineering enhancements to ensure that stability is backed with impressive ball speeds – a next generation CORTECH Chamber and new Bet rich LFS Ti clubface. Delivering an impressive ball flight that stays on whatever line you set it. Mizuno ST Max 230 Driver - Features: Max stability wide profile with a 54g back weighting Expanded cortech chamber to maintian ballspeeds across the clubface A lighter Beta Rich Ti face material Longer 45 3/4 inch shaft for faster clubhead speeds Additional stability through the ST Max head Quick switch hosel with 4° of adjustability Stock Shafts: UST Mamiya LIN-Q Red 50 Stock Grip: Lamkin ST Hybrid Authorised Mizuno Golf Retailer