TENSEI™ 1K BLACK also utilizes Mitsubishi’s Xlink Tech™ Resin System in the tip section to bolster the shaft’s tip strength and increase the shaft’s durability. Tip stiffness and torque are further controlled through the use of 40-ton carbon fiber in the shaft’s construction. Add the subtle, yet premium matte clear finish and you get a shaft that gives high speed players the low launch, low spin performance with great feel they need with the good looks they desire.