The best game-improvement graphite irons keeps getting better. A solid, game-improvement iron provides a proven combination of forgiveness and styling. Callaway Golf Men’s 2006 Big Bertha Irons w/ Graphite Extreme Notch weighting moves more weight to the perimeter of the club head providing greater forgiveness, more stability and reduced distance loss on off-center hits. Constant Width sole helps club glide more easily through the turf reducing digging on fat and heavy shots. Deeper 360-degree Undercut channel moves Center of Gravity farther and lower back in the club head providing more forgiveness, even on off-center hits. Callaway Golf lightweight graphite shaft. Set includes: 4-PW, SW (8 irons).