Engineered for tour trajectory; Constant blade height with progressive blade length promotes more forgiveness in long irons and controlled, penetrating trajectory in short irons * Engineered undercut modest cavity back with engineered undercut improves ball speed and accuracy on off center hits * Face forged technology; Every iron has a forged club face to enhance ball speed and feel * Vibration dampening; Multi material iron plaque of polymer and aluminum dampens vibration at impact for more consistent feel * Fully customizable; Part of the 588 Irons Family, tour trajectory Irons can be easily interchanged with 588 mid trajectory and altitude Irons to customize a set with the perfect combination of ball flight, feel and forgiveness