The Diamana BB (Blue Board) is the second profile in the latest generation of Diamana shafts. It features the traditional branding that made Diamana popular, including a return to the original 53/63/73/83 weight class designations. This shaft incorporates advanced engineering and material innovation, making it a top choice on tour. Key Features: Maximum Energy Transfer: Utilizes super high-modulus 80-Ton Dialead Pitch Fiber in the butt section. Greater Stability: Employs high modulus 46-ton fiber in the shaft’s angle plies to lower torque. Enhanced Feel and Durability: Mitsubishi's proprietary Xlink Tech system increases the overall strength and durability of the shaft while enhancing carbon fiber volume for a superior feel.