King f7 fairway blackthe king f7 fairway is our longest amp most forgiving adjustable fairway with both rails and adjustable front to back cg to maximize distance through optimized launch and spinnew baffler rail technology a smoother progressive rail design that provides forgiveness from any liebaffler dual rail system with progressive rail designprogressive rail design provides shallower or steeper rails depending on club loft amp angle of attack for improved turf interaction and con