This convenient earthing distribution box with a standard connection cable (with pin) connects up to 4 standard connection cables of all our grounding products. Usage: Avoid a cluster of cables to your wall socket(s) Add an extra 5m to your standard connection cable(s) from your grounding item Use this extension box with no extra radiation (voltage) as exists on regular extension boxes. You can add 1 or more extra grounding products to this handy grounding box by adding 1 or more additional splitters (see image). The cable with pin goes into: A grounding adapter (comes with every grounding product order) into a grounded wall socket The cable of an earthing pin, if you decide to use this box instead of splitters to connect more than 1 grounding product. The 12-meter extension cable if you need more length to the grounded wall socket. If you want to connect all to a central heating pipe (if no well-grounded wall socket is present) use the Distribution box with Alligator Clip instead. These pipes are always grounded through the kettle/burner. Both the cable with alligator clip and the standard cable with pin fit on the snap pin of this distribution box.