Callaway Fusion Widesole Irons
With a clean, sleek look at address no other game improvement iron has ever approached, Big Bertha Fusion Irons deliver the unmatched playability, and confidence that could only come from Callaway Golf, the established leader in iron technology. Three components a proprietary Tunite alloy cradle, a light titanium face insert, and a TPU SenSert make the Big Bertha Fusion Irons the most technologically advanced irons available today.
At the heart of Fusion Technology is the Tunite alloy cradle. Callaway created a new, patented alloy for the cradle that is ultra-dense and allows 77% of the clubhead mass to be repositioned to the head perimeter. This extreme weighting creates very high Moments of Inertia (MOI), which keep the clubhead stable and resistant to twist, The alloy cradle works in tandem with a light, 6-4 titanium face insert that is strong, and 35% lighter than a comparable steel face. This weight taken out is distributed around the perimeter to create the most extreme weighting of any iron Callaway has made
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