The Seco 8.5-Foot TLV Fiberglass Prism Pole 5540-10 offers surveying professionals all the features they can ask for in a prism pole with the added bonus of lightweight performance. This alternating red and white prism pole is constructed entirely of wear-resistant fiberglass that is also non-conductive and will not weigh down your equipment load. This prism pole extends to 8.53 feet and collapses to 4.97 feet. It has dual graduations in feet, tenths, and hundredths of a foot and centimeters with a 5/8 x 11 thread on top and an adjustable tip on the bottom. A soft, rubber, twist knob lock secures the length of your prism pole and a built-in 40-minute level vial provides an invaluable resource for keeping your prism pole level.