Tour Edge Men's Exotics XCG4 Irons The XCG-4 Irons are guaranteed longer than your current irons. The XCG-4 face measures less than 2.2mm and has different levels of thickness to promote distance and enhanced feel. That combined with the dual tungsten weights behind the face produce our highest rebound rate and moment of inertia in an Exotics iron. A deep, undercut cavity moves weight to the outer edges of the clubhead for enhanced forgiveness and a higher MOI. The cavity, the wide sole design, the perimeter weighting and the tungsten sole weights help to lower the center of gravity. Creating playability across the entire set, each iron in the set is engineered to its specific task including c.g. location, progressive offset, face thickness, and top line thickness for a perfect blend of distance and accuracy. These irons feature a slight offset that provides game enhancing forgiveness. Choose from 3 iron-Pitching Wedge 8-club set; 4 iron to Pitching Wedge 7-club set; 5 iron  Pitching Wedge 6-club set.