Perimeter Weighting: The PING G425 irons feature a tungsten toe screw and hosel weight to expand perimeter weighting and create a new standard in forgiveness for an iron its size. Speed-Generating Face: A variable-thickness, stainless steel face in the metal-wood-style design delivers fast ball speeds for generating higher, longer results.Stopping Power: A cascading sole and top-rail undercut combine to perform like a hinge, flexing at impact to launch the ball faster and higher with green-holding precision consistently and predictably.Streamlined Look: The G425 iron blade length is shorter than the G410 iron, but the head has a higher MOI.Multi-Material Badge: Extensive analysis was used to develop a three-piece, multi-material cavity badge covering more of the face to dampen undesirable frequencies for superb feel and sound.