Mizuno Golf JPX921 Hot Metal Pro Iron Set

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Chromoly 4140M: With its high strength to weight ratio and malleability, Chromoly lets in a for high strength face with a bendable hosel for fitting
Harmonic Have an effect on Technology: Fine tuned head geometry delivers ideal Have an effect on feel and feedback
Stability Frame: Open on the heel portion to give a boost to stability and launch, even as producing a tour most popular vibration and sound.
Seamless Cup Face: Thinned areas revolving 360 degrees across the perimeter increase rebound area for maximum ball speed across all of the face
CORTECH Design: Optimized face thickness distribution to maximise COR AREA