Mizuno MP-59 #5 Iron Stiff Flex Steel Men's Left

Condition Rating: 7

What does this mean? 

While Mizuno makes a variety of muscle backs and cavity backs, these have a more muscle back look with a hidden cavity.  This design factor proved to be really interesting for me.  Instead of hollowing out the areas next to the sweet spot and leaving the majority of the mass behind the sweet spot, they removed the forged metal there and put in lighter titanium.  This created a more forgiving head by keeping the mass out near the edges, yet somehow didn’t create a hollow feeling.  It is amazing what Mizuno can do with a forged iron.  A mix of metals and design factors yet the same solid feel with even a little more forgiveness.