Callaway Golf Men'sRAZR X Tour Irons RAZR Technology Shifts the center of gravity lower and deeper More shot-making from more places by providing the forgiveness of a wide sole iron while retaining the playability of a thin sole iron VFT Power System Fully integrated clubface/undercut cavity system that enables our engineers to precisely position the CG and engineer the face of each individual iron to maximize ball speed Customized Set Options Golfers who struggle hitting long irons can increase distance and forgiveness by substituting RAZR X Hybrids into their set where their confidence and consistency start to drop off