The perfect union of razor-sharp looks, power, and playability, the player's distance Srixon ZX5 Mk II Irons combine a premium forged feel with advanced ball speed and distance technologies. Srixon utilized artificial intelligence and machine learning to create, test, and improve face designs of the new ZX5 Mk II Irons. After thousands of iterations, Srixon's automated intelligent design software produced MainFrame. This unique architecture involves milling a variable thickness pattern of grooves, channels, and cavities into the back of the iron's face, vastly improving COR by maximizing flex at impact. Clearly, Srixon's hard work paid significant dividends, as evidenced by the iron's explosive ball speed and distance on every shot, even when you miss the sweet spot. If you would like to customize the shafts, grips, lengths or lies give us a call or send an email to Tom@dallasgolf.com. Standard Srixon warranty applies and satisfaction is guaranteed.