Inverted Cone Design and Full Hollow Construction technologies in Cleveland's Hi-Bore iron set allow the Center of Gravity (CG) to be positioned 6 times deeper than traditional wide sole irons that helps to promote a higher initial launch. The clubface and hosel are cast as one piece, expanding the sweet spot to the size of the clubface. A 28% larger hitting area allows for solid contact on off center hits. This set has a progressive sole width - wide sole in the long irons transitioning to traditional sole in PW – ensures optimum trajectory and distance control through the set. The most forgiving long irons in the game, the #3 & #4 irons have bulge and roll for increased playability and control.