A surveyor can set up a freestanding GPS antenna pole or prism pole 1-to-1.25 inch (25.4-to-31.8 mm) outside diameter Poles attach easily through the open clamp 1.5 inch (3.81 cm) outside diameter Poles can be loaded through the top Legs (independently) extend to 6 feet (1.8 m) and collapse to 43 inches (109 cm) Red Weighs 4.25 lb (1.93 kg)