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