The Mizuno MX 700 fairway woods have been developed with a new light weight steel face construction called the ES-230. This new light weight face allows Mizuno engineers to increase COR making this fairway wood more powerful.
The saved weight also allows for a larger crown, which optimizes the COR effect making the MX 700 fairway powerful off the tee and forgiving from the fairway.
Please note that Mizuno are now sold out of ALL MX 700 fairway woods until Feb 2010!!