Pipes made of PE must be connected reliably, therefor appropriate holding devices should be used during welding. Movement of the pipes or fittings shall be prevented during welding and cooling time. All these requirements must be observed according to DVS regulations and appropriate tools should be available when working in the pipeline system. GEROtool® Fixi simplifies handling and provides more safety when making electrofusion welds. The practical and robust holding device enables welding in five dimensions and also the welding of reductions.