Callaway X Series is Callaway’s most successful products line. From the first beginning of x12 Callaway irons released, Callaway X Series clubs has been dominated the sale of golf irons. X series clubs were specially designed for PGA players. So they have highest performance. Callaway X series are game-improving models. X22 Irons and X24 irons are two typical irons set and keep hot for such a long time. They both feature in Precision Notch Weighting, VFT Technology, and a Modified Tru-Bore design, which are all Callaway innovative technologies. They are able to enhance feel and performance and maximize your ability. Do not think Callaway x series clubs are only suitable for pro golf players. Callaway x22 irons are for golfers at different levels.