Big Bertha X-12 Pro Series Irons are specifically designed for lower handicap golfers. Like the their standard X-12 counterpart, they feature a varied 360-degree undercut channel that creates a thinner profile and gives optimal weighting for less drag and improved performance out of the rough, plus a larger effective hitting area. The Less-Offset design enables better golfers to work the ball more easily while the S2H2 and Tru-Bore technologies provide maximum forgiveness and feel.