Fast fit technology green means go the fastest easiest and one of the lightest adjustable hosel systems allows for quick fitting changes on the range and tee box with fast fit loft can be adjusted without fully detaching the club head from the hosel or shaftadjustable weightingan interchangable weight 3 7 and 11 gram weights included placed low and close to the face decreases spin while maintaining an optimal launch angle for maximum distancereactive face technologyreactive face techn