Fits Any 35mm Pole. Attach Scaffold Poles DirectlySupport Hole: 35mm Support Clamp: 50mm SWL: 80kg Dimensions: 185 x 95 x 80mm Weight: 0.8kg. An adaptor to fit a 35mm stand and to attach a 50mm scaffold pole or Truss. Simply slip the adaptor on the stand and the bar under the clamp- securing the wing nuts firmly.. lighting stand-lighting stand adaptor