Mizuno MP-67 irons. The MP-67 irons combine the tour winning characteristics of Mizuno's classic blades, with a Cut Muscle design, developed to fine tune performance through the set. The Cut Muscle design allows complete ball control by pinpointing the COG (Centre of Gravity) inside the muscle back design. A neutral COG relative to the shaft axis and a consistent sweet spot location allow quality ball strikers to work the ball in either direction, whilst maintaining control of trajectory. The perception of feel is enhanced by a 5% head-weight shift into the strike area, while the use of high grade 1025E pure mild carbon steel in Mizuno's Grain Flow Forging process promises unparalleled consistency. The cambered head sole of the MP-67 allows the player precise shot making capability from all types of lies.