Constructed from solid aluminum die-casting material with black powder coating,the Kupo Extension Arm is a 6” extension arm that is designed for attaching to Super Convi clamp for hanging a light or a camera from a light stand or pole. The extension arm features a 5/8” (16mm) baby receiver and a removable universal adapter spigot with 1/4”-20 and 3/8”-16 male threads. The arm terminates in a hex-shaped stud that snaps into a Super Convi Clamp or Super Viser clamp preventing the arm from rotating. Weight: 0.2kg (0.44 lbs).