USB junction box. with switch

i wanted to be able to have a USB block that i could connect to my 12v battery box, via a 50amp anderson plug,this gave me the function of having a long lead to run out of the can and to anywhere on the camp site, or tent. using 6x m3 bolts for the lid.6x m3 nut inserts with 3.5mm hole to allow for insert2x slotted mounting points on the back this was set up for 2x usb/ usb c connections and 2x usb blocks as well as a round toggle witch