First Look – Callaway X-Muscle Prototype
Take a look at Callaway's first foray into bladed irons. They have gone straight into the bags of Phil Mickelson and Ernie Els.

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Callaway?s first foray into blades comes in the shape of the new prototype X-Muscle irons. They are currently in the bags of Ernie Els, Phil Mickelson and Thongchai Jaidee and are expected to be available in Summer 2008.
See picture of the new prototype irons in our gallery section.
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