Yonex Gen 2 Royal EZONE Irons - Graphite Shafts
A high-resilience new face material, tungsten weighting in the soleand two types of graphite complete the four-piece head construction that combine to generate exceptional distance with penetrating pinpoint accuracy. Using maraging steel AM365 which increasesstrength by 12% compared to the previous model, allows the face atthe upper and lower parts to be reduced to 1.9 mm.
Furthermore, adding G-BRID (graphite hybrid) to the blade allowed for 0.5 mm thinner than the previous iron, resulting in a face that can flex and realize even higher repulsive force.