The Callaway Big Bertha 08 Ladies irons are technologically advanced stainless steel clubs consisting of i-brids instead of hard-to-hit long irons, and super game-improvement mid and short irons. Each club has a wide sole design that improves turf interaction and a low, deep CG that helps get the ball in the air quickly and easily. The shafts are slightly longer to better match the average woman's height and the lofts, lie angles and club weights are optimized.