The Nike Golf Composite Cavity Insert (CCi) Cast irons are targeted to mid-to-low handicap golfers. The Nike CCi Cast irons feature inserts comprised of two key components, a high-density tungsten weight plug and a feel enhancing polymer. The tungsten weight plug creates a lower CG (Centre of Gravity) position to increase forgiveness while the polymer dampens vibration for a softer feel. The CCi Cast irons provide a clean design with a CNC Milled Face for more predictable distances and shot patterns. The CCi Cast irons, which are made from 431 stainless (25% softer than the commonly used 17-4 stainless), feature a thicker topline, more offset and a wider sole than the CCi Forged irons. The CCi Cast irons also incorporate two polymer filled sole ports that further dampen vibration to achieve a softer feel than a conventional cast clubhead.