The Mizuno MP-57 irons are a grain flow forged iron featuring award-winning Cut Muscle technology in a full cavity design. The MP-57 is the first iron in Mizuno's legendary MP line that utilizes a full cavity, resulting in a larger sweet area and making the MP-57 the most playable MP iron in the storied history of the company. Along with increased forgiveness, the Mizuno MP-57s with Cut Muscle Technology will deliver the unsurpassed feel and precision that MP players crave. The result is an iron that delivers an extremely consistent and predictable ball flight and unmatched workability while also providing extra forgiveness that any player can benefit from. Other features of the Mizuno MP-57 include a rolled leading edge, cambered mid-sole, and rolled trailing edge to deliver consistent striking ability from all types of lies, modified U-grooves produce the ideal spin rate for maximum playability in all conditions, and a durable double nickel chrome plated finish for a player preferred look.