The R9 Iron Set offers distance and control-enhancing technologies in a classic shape. The Velocity-Control Chamber in 3-6 irons provide increased consistency, ball speed and power while the innovative shock-absorption system in 3-6 irons give a satisfying feel and sound. A deep undercut cavity and heel-toe weighting in the short-irons allow for increased forgiveness and the expertly beveled sole in every iron reduces turf resistance and promotes crisp contact.