Cobra S9 irons. The King Cobra S9 irons are the most technologically advanced, most forgiving irons Cobra has ever made. Featuring Cobra's new game-changing, multi-material iron technology, the Cobra S9 irons have higher inertia qualities and an extremely low and back Centre of Gravity for high launch, greater distance and more accuracy. Designed for higher handicappers S9 stands for 'Sweet Nine'. Featuring multi-material construction to produce maximum accuracy, distance, forgiveness and feel across the 9 Accurate Points on the face, S9 irons are designed for players who want the ultimate in game enhancing performance. The Cobra S9 irons feature a Wide Sole, Low Profile, Undercut Cavity Design - low and back Centre of Gravity and high Moment of Inertia to generate high launch and superior distance with maximum forgiveness. A Polymer Topline allows weight to be redistributed for an extremely low and back centre of gravity while the Urethane Sole Insert promotes a softer feel.