The Kupo Swivel Truss Adapter supports for quickly converting your Jumbo stand into a boom stand by mounting on a truss system that allows you to rig the heavy fixtures for the overhead lighting setup. It’s constructed from sturdy 40mmx40mm aluminum square frame which is measured 29cm in by 29cm in length and width. The frame is connected to the swivel yoke with a 1-1/8”(28mm) junior pin for mounting on Jumbo stands. There’re four high tensile aluminum extrusion couplers equipped on one side of the frame (25cm between 2 couplers, center-to center) to firmly clamp the industrial standard 2” ladder truss, triangle and square truss system.