E-IMAGE EI-B84 Aluminum Boom Arm made of lightweight aluminum, extends up to 160cm and collapses down to a compact 66cm. It also includes a reversible 5/8" spigot with 1/4"-20 and 3/8"-16 threaded posts that provide multiple mounting options. It features a heavy-duty pivot clamp with a 5/8" light stand receiver and a ratchet handle for easy and secure angle adjustment and designed with a counterweight hook and comes with an empty sandbag.