Demonstrably Superior and Pleasingly Different. The new Big Bertha Fusion Irons deliver everything youve come to expect from Callaway but with a few new twists. The most untraditional, traditional-looking irons youll ever play, Big Bertha Fusion Irons play longer. Feel better. Look great. Callaway Golfs weight distribution technology, designed for Big Bertha Fusion Woods, is now available in irons, featuring Tunite alloy, a TPU SenSert and a lightweight 6-4 titanium face insert. The Tunite cradle allows 77% of the mass to be positioned around the extreme perimeter of the iron for ultra-high MOI and a low, deep CG; the TPU SenSert helps reduce vibration for great feel, plus eliminating the hollow sound and feel of an oversized cavity-back for a crisp, responsive sound; the lightweight 6-4 titanium face insert is 22% lighter than a comparable steel face allowing the weight to be distributed around the perimeter for faster ball speed, greater feel and a larger sweet spot.
Women’s Callaway Steelhead Plus Fairway Wood 
Callaway’s exclusive Variable Face Thickness technology in the Steelhead Plus allows for a clubface that is both thinner and more durable by engineering precise thicknesses at special points across the interior of the face area. This variable thickness is carefully calibrated to increase the efficiency of the clubhead at impact to maximize ball speed. In other words…hit the ball longer!
Women’s Callaway Hawk Eye Fairway Wood 
This is Callaway’s original Big Bertha wood. With a wide body, this wood features Callaway’s S2H2, which allows Callaway to transfer weight from the neck, where it has no benefit, to the head, where the weight is needed the most. This results in shots that feel better and more solid!
