The distance standard in irons was set in 2013 with the X Hot Irons. The new high-water mark is now owned by Callaway's Lady X2 Hot Irons, with its totally new, innovative technology. It provides the same domination in the hitting bay, on the range, and on the course. Deep Central Undercut: The New Deep Central Undercut increases the rate the face flexes and rebounds, increasing ball speeds to make this iron even longer. Stabilizing Arch: Exceptional sound and feel at high ball speeds come from a stabilizing arch that reinforces the face. Perimeter Weighting: If you like higher launch angles, more distance, stopping power on the greens, and a bigger sweet spot, Callaway developed the perimeter weighting with you in mind. Lightweight Shaft: The new lightweight graphite shaft brings great feel and control with higher launch angles.