Cleveland CG2 Irons. The Cleveland CG2 Irons were specifically designed for the avid golfer and are ideal for the low to mid-handicapper searching for a club with the forgiveness of a cavity-back and the workability of a blade. These perimeter-weighted irons, made from Carbon Metal Matrix (CMM), have a small cavity-back design which offers increased control along with added forgiveness. The design of the CG2s combined with revolutionary low-density properties of CMM have helped engineers at Cleveland Golf create irons with both increased MOI for extra stability at impact as well as a lower and deeper CG which helps promote a higher ball flight. The density relieving spheres within CMM also help dramatically damp vibration making the CG2 irons one of the most forgiving and solid feeling irons available on the market.