The KING RF Forged MB Copper Irons are an evolution of the Limited-Edition RF Proto Iron into Cobra's mainline KING iron family. Designed for highly skilled players, the irons feature the same signature shape designed by Rickie Fowler. 5 STEP FORGING PROCESS Each iron is forged 5 times from a block of 1025 carbon steel to deliver a tighter grain structure that provides the exceptional feel that better players desire. TUNGSTEN WEIGHTING Per Rickie's request, a tungsten weight is positioned out on the toe to center the CG for the purest and most precise shots with a little bit of added stability. PLAY THE RIGHT IRON FOR YOUR GAME. Whether you desire a traditional forged muscle back shape, a players cavity back, or a hollow iron for added distance and forgiveness, the KING Copper Series has an iron for you. Handicap - 0-3 Shape - Most Compact MB Shape Contruction - 5-Step Forged Offset - No Offset Sole Width - Most Narrow Sole Width Launch - Mid-Low Launch Performance - Tour Caliber Forged Irons Designed For Precision & Control