The Tour Edge Exotics XCG-4 irons feature the thinnest face of any Exotics iron, and are the longest Exotics irons to date. They are designed, iron by iron, with the optimal center of gravity location, offset, face thickness, and top line to provide consistent performance throughout the set. Dual tungsten weights behind the face provide a higher rebound rate and Moment of Inertia to provide faster ball speeds and less twisting on off-center hits. A deep undercut cavity, perimeter weighting, and wide sole design combine to provide incredible forgiveness. This club is backed by a Lifetime Warranty from Tour Edge.