Edding 8407 Cable Pen Set of 4

The wires run along each building. It is important that they do not proceed in a complicated way

therefore, the cables need to be clearly labeled for technicians and workers. The thinnest tip of its kind guarantees that the edding 8407 cord pen will find the right place to mark the wires accordingly.don't think that the wires work inside or outside-the permanent waterproof and non-fading marker will cover them. Because a proper wiring requires proper color coding, this particular edding comes in four different colors.