Ideal for GPS and machine-control applications. Heavy duty aluminum with collapsible 2 meter center staff that rotates 360-degrees. 3-positon center staff with steel locking pin - locking heights of 79", 71", and 59" (2.0m, 1.8m, 1.5m) Electrostatic powder-coated aluminum legs with replaceable points Double leg points creates more grip to maximize stability to prevent chance of twisting, ideal when using angle measuring instruments such as robots Built-in compass with 8 minute vial Removable 5/8-11 thread adapter Large telescoping legs (1.25 to 1.50 inch diameters) feature adjustable handle bolts on the leg pivots creating greater stability Aluminum hardware is anodized black Fluorescent yellow Open: 79" (201cm); Closed: 50" (127cm) Wgt 15 lb (6.8kg)