Developed following extensive testing with PING's top tour pros to meet their "must haves" -- control and precision -- Blueprint S delivers the score-lowering performance demanded by the best players in the world. The compact shape fits the discerning eye with a thin top line and minimal offset. The 8620 carbon steel head boasts a clean cavity design, distinguished by an eye-catching forged textured pattern and hydropearl 2.0 chrome finish. What further sets this iron family apart is the split-set construction technology called "precision pocket forging." This patented forging technique allowed PING to forge a pocket into the cavity of the 3, 4 and 5 irons. The pocket saves 10 grams of weight, which is re-allocated to increase the MOI and optimize the center of gravity position for more distance and trajectory control. An elastomer insert is concealed in the pocket of the 3-5 irons, ensuring the solid feel and sound expected in a forged players iron. The 6-iron through pitching wedge are sized and shaped to ensure workability and control. TECHNOLOGY Fully forged 8620 carbon steel head Patented precision-pocket forging in 3-5 irons saves 10g to increase forgiveness Elastomer insert in the forged pocket ensures a solid feel and sound in 3-5 irons Compact shape with thin topline, minimal offset Tungsten toe screw and shaft tip weights for swing weight fine tuning Same standard lofts as Blueprint T, i230 to allow for blended sets Hydropearl 2.0 chrome finish Stock shaft: True Temper Dynamic Gold 120