I was needing a box, reasonably protected against humidity, in order to concentrate several cable wires that supply power to my swimming pool. It is a little bit tiny, so I need to make all connections fit inside. Even so, that is nothing that a lot of patience can not do. I have also bought 8 inside go through joints, for which I need to open holes at the side of box, in order to assemble them. Once this is done, wires will go through this plastic joints and will be completely protected from any external water and humidity. I would prefer to use another kind of box, closed by plastic screws (in order to avoid eventual rust), but the price was not affordable. So, I have chosen this one with metal closing screws. I really hope that I will succeed in this audacious project.