The Ping G Irons not only look good, but are built to provide distance and forgiveness. The stainless steel club head construction features heat treatment to increase the strength of the material by 40%. This allows Ping to implement a thinner face, adding an additional 5 yards of carry to each club. These irons also feature Cor-Eye Technology to increase face flex for faster ball speeds of 1.25 MPH across the face, giving you improved distance and control. The weight on these irons is concentrated in the perimeter of the club. This allows for an increase in Moment of Inertia, or MOI, for consistency and accuracy. Ping has also given these irons a deeper center of gravity to provide a higher launch, more distance, and more control, all factors to help you hit and hold more greens.