ANTI-CRUSH BIPOD The SitePro anti-crush bipod prevents crushing of your carbon fiber or prism poles and allows surveyors to set up a freestanding prism pole or GPS pole. New anti-crush bipod head prevents crushing of carbon fiber range and prism poles when clamping on Fits 1- to 1.25 inch (24.4 to 31.8 mm) outter pole diameter Poles with 1.5 inch (3.81cm) outside diameter can attach easily through the top of the open clamp Poles easily attach through the front facing open clamp system Bipod extends to 6 feet (1.8m) and collapses to 42.6 inches (108cm) Hi-vis flo-yellow color Weighs 4.3 lbs (1.93 kg)