SitePro Black Carbon Fiber Anti-Crush BipodSitePro Carbon Fiber Anti Crush Bipod 07 4365 The SitePro anti crush carbon fiber bipod prevents crushing of your carbon fiber or aluminum prism poles and allows surveyors to set up a freestanding prism pole or GPS pole Poles with 1. 5 inch outside diameter can attach easily through the top of the open clamp Poles easily attach through the front facing open clamp system Thumb release Fits 1 to 1. 25 inch outer pole diameter Bipod extends to 6 feet and