From JTP RC:
This is a 2.5x6mm x 1m length translucent black Ultimate Racing Silicone Fuel Line. This JTP Heat Resistant, Ultra Thick Fuel Line is the perfect choice for all 1/8 and 1/10 nitro racing applications. Made from special heat resistant silicone, this line is soft enough to bend around tight areas, but will also stay firm enough to resist kinking. Comes black in color to give your car a very clean look and will not discolor after use. Jared Tebo trusts this fuel line on all his cars!
2.5x6mm and 3ft in length.