3-Position Carbon Fiber Rover Rod features a one-piece design that is faster and more user friendly Ideal for GPS RTK surveys The rod telescopes and locks at 3 different heights of 2.2 m, 2 m. The rod has two locking systems: the no-slip snap-lock and a compression lock that centers the telescoping inner and maintains straightness Includes a 40-minute, adjustable circular vial Dent-resistant carbon fiber is strong and has a zero coefficient of expansion Weighs 2.91 lb (1.32 kg)