Product Overview: The EXS 220 Driver produces extreme M.O.I. (Moment of Inertia) numbers with its all new elongated shape and adjustable 9-gram back weight to create one of the highest M.O.I. measurements ever manufactured in a driver, making it the most forgiving and accurate driver we've ever engineered. Diamond Face design is a major breakthrough in face technology that features different thick and thin diamond shapes or "mini-trampolines" behind the face, producing a hotter face with faster ball speeds, reduced spin, and better performance on off-center hits. Features: Diamond Face Produces a hotter face with faster ball speeds, reduction of spin and better performance on off-centre hits. Ultra-Premium 8-1-1 Titanium Construction Features a lower density lighter titanium to allow for more weight repositioning. Max M.O.I. Design Features a new elongated shape and adjustable 9-gram back weight to create an M.O.I. of 5440 grams per cubic centimeter, a 20% increase. Triple Carbon Tech Featured on the crown, heel, and tow of the sole provides extreme weight savings that reposition weight into the back of the clubhead.