Callaway Big Bertha 06

Callaway Big Bertha 06 Irons 4-SW Steel:

The irons that embrace everything Callaway Golf stands for: Impressive performance through innovative technology.

Notch Weighting

Callaway Golf's proprietary notching weighting system increases forgiveness and accuracy, even on off-center shots. By removing weight from the center of the club, substantial bulk is removed from the clubhead. This bulk is then relocated to key areas, including the heel and toe and across the back ribbon area.

This maximum perimeter weighting helps to square up the clubface, especially on off-center hits. It also increases the MOI for added stability and a more solid feel.

* Stunning, high-polish finish is the result of an innovative 17-4 cast stainless steel composition
* Proprietary technologies including S2H2, Tru-Bore, Variable Face Thickness, and 360° undercut channel design vastly improve clubhead control, feel and efficiency
* Bold, constant-width sole design decreases digging to eliminate fat shots and drives the club through a variety of challenging turf conditions