Chauvet 360&deg; Wrap Around O-Clamps Truss Light Mounting - 75 lb Capacity (4 Pack) Includes removable adaptors to fit different sizes of truss Wraps completely around truss for added security and stability Made of ABS plastic which won't scuff, scratch or dent truss Load capacity: 75 pounds Fits: 1in, 1.5in, 2in truss