06-808A CST/Berger 8-Foot Aluminum Grade Rod in Feet, Tenths, Hundredths The 06-808A CST/berger telescoping aluminum rod is made of a light and durable aluminum alloy. The anodized sections are imprinted with special weather resistant and corrosion resistant inks. Tight tolerances on extruded aluminum sections allow for smooth extension and prevent unnecessary clattering and slopiness. The sectional joints of the 06-808A CST/berger telescoping aluminum rod are injection molded from a durable lightweight impact-resistant plastic. 06-808A CST/berger telescoping aluminum rods are equipped with reliable and wear resistant polycarbonate buttons that lock each section. 06-808A CST/berger telescoping aluminum rods are easy to read graduations and a special measuring scale on the back side permit users to read height at eye level.