Callaway Driver Shaft 1W with Sleeve EI-F NS210-D Nexgen Custom Shaft Callaway Sleeve Flex: One Flex Torque: 5.4 Driver Shaft 1W Shaft EI-F Shaft Unique rigidity distribution that generates great power at the transition and transmits power with a strong kick from the shaft's return. A unique design that allows amateurs to utilize the shaft's flex to gain speed and power, going beyond the conventional kick point concepts of "tip, mid, and butt." Length: Approximately 114.8 cm to the tip of the sleeve Weight: Approximately 91g Elite Paradigm MAX Triple Diamond Big Bertha Rogue LS Epic Maverick