The Grain Flow Forged JPX-825 Pro pushes the design limits to achieve forgiveness and feel in this "player's" game improvement iron. The 4-7 iron offer a deep CNC milled pocket cavity that provides 17 grams of discretionary weight that is used for extreme toe-heel weighting providing plenty of forgiveness where you need it. The 8-GW feature a full cavity design with greater thickness behind impact for a more penetrating and workable ball flight for pinpoint accuracy in the scoring irons. Utilizing Harmonic Impact Technology, Mizuno engineers designed an incredibly strong cavity frame that allows a thinner, more reactive face for increased initial ball speed while maintaining an unbelievably solid feel at impact. A tour confirmed triple cut sole design provides the appropriate relief on the leading and trailing edges for ideal turf interaction and solid ball striking from anywhere on the course.