This is the Lightweight Prop Shaft for the Tamiya TB-02, TB-01/Evolution vehicles.  

FEATURES: Aluminum Construction Anodized gun-metal in color

INCLUDES: One Lightweight Prop Shaft

REQUIRES: Installation onto vehicle

SPECS: Length: 241mm (9.5") Center Diameter: 5mm (.20") Diameter @ ends: 5mm (.20")

COMMENTS: This is an optional part for stock, non-Evo TB-01 vehicles. Also known as the Center Shaft.