This is a waterproof box that you can either print as is or use the STEP file to make one that suits your needs. There is a version with holes for electronics' cables and one without any holes. There are 4x M5x60 screws and 4x M5 nuts used to tighten everything down. You can additionally use some silicon or a rubber gasket to help with the seal around the edges. There are also plugs that fit over the screws to hide them.