Ping G710 Irons Longer. More Forgiving. Ping's longest, most forgiving iron is the product of a maraging steel face, combined with a stainless steel body, which creates metalwood-like flexing, faster ball speeds, added distance, and higher shots with more stopping power. Feel and sound are greatly enhanced, as well. 5% higher MOI The 17-4 stainless steel body and high-density tungsten toe and shaft weights increase the MOI, producing exceptional forgiveness and higher launch for more distance an