TaylorMade Golf Men's RocketBladez High Polish Iron Set, Graphite, Left Hand, Stiff, 4-PW,AW Speed Pocket in the 3- through 7-irons promotes consistently high ball speed and distance 17.5 grams of weight is strategically redistributed to lower and center the CG location SW and LW have specially designed cavities with our renowned ATV sole for maximum versatility