Note: This shaft will fit any 2014+ model year Callaway Driver such as: Big Bertha, Big Bertha Alpha, X2 Hot, X2 Hot Pro, XR / XR16, XR / XR16 Pro, XR16 Sub Zero, Big Bertha V Series, Big Bertha Alpha 815/816, FT Optiforce, Great Big Bertha, all Bertha uDesign models. Shaft tool is not included. This shaft has a factory installed COG and new grip.Shaft tool is not included. The Tour AD DI is our first shaft design that was integrated with Toray Company's original NANOALLOY material technology in the tip section of the shaft. This material technology has now come to be known as "DI Technology". This unique material technology promotes additionally shaft stability without the loss of feel and allows the player to create greater club head speed and thus greater ball speed while still providing exceptional feel and control.

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