The irons also offer the company's SuperFast technology, which reduces the total club weight and promotes a faster swing speed--a must for distance-obsessed golfers. The clubs' Inverted Cone Technology, meanwhile, expands the high COR zone to promote higher ball speed on off-center hits. Finally, each iron sports an extra-large clubhead with tungsten weights to increase the moment of inertia (MOI), ensuring greater stability and forgiveness on each shot. As a result, you'll excel whether launching long shots from the fairway or approaching the green from 85 yards out. The right-handed clubs--which come with your choice of steel or graphite shafts--carry a two-year warranty.