KUPO Slim Type Mighty Swivel Coupler (KCP-858) is constructed from high tensile aluminum extrusion. It has been developed for installations where load capacities of up to 308.65lbss (140kg) are required. Mighty Swivel Coupler is designed to fit tubes with diameters between 51mm-60mm (2"~2.36"). For quick and easy interconnection for truss, pipes or bars. Allows for a full 360 degreed of movement. A drift pin is also supplied for fixing in a 90 degree configuration. A captive on top of thread bolt to avoid wing nut falling off the clamp. TUV certified. Ideal for stage, event, theater and studio.