Speed sole technologya thin face to sole transition that expands the sweet spot lower in the face for driver like distanceheel and toe weight podspositions mass around the perimeter of the club head for a larger sweet spot and forgivenessright light technologyallows players to swing faster with the same effort faster swing speeds deliver more distancespecifications club hand lofts lie swing wt length 4 rhlh 210 60 d1 39 5 rhlh 24 61 d1 3850 6 rhlh 27 615 d1 3800 7 rhlh 31 62 d1 3750