10 Years ago, KBS Golf Shafts changed the way your Irons played and performed, now we are doing it AGAIN, with Graphite. Introducing the KBS TGI Tour Graphite Iron. The KBS Tour Graphite Iron is the first Graphite Shaft to play like KBS Steel with optimized weight and stiffness per player to gain maximum play-ability & performance. It is designed with the same E.I. curve as our KBS Tour Steel and is in every weight class to fit every player from Juniors to Women, to Tour Professionals. This is for a 8 piece set, 3-PW, if you need a different set makeup just ask. These are only offered in .370 however we can bore out your heads to install these for no extra. The installed price of $150 is for the whole set and includes grips. For a single install it would be cheaper.