linco lincostore 2.5ft to 5ft adjustable overhead light boom arm with universal tripod clamp & counter-weight bag 4255k linco <b>1 x linco#4255 linco zenith 4255 boom arm with boom clamp and counterweight</b><br/><br/>-adjustable length from 2.5 to 5 feet<br/>--black durable sandbag / cuonterweight<br/>--build-in boom clamp prevents missing parts