Used to mount a DC to USB charger that is normally advertised for cars to replace cigarette lighters. Used double sided tape to attach to a wall or corner. Works great to add a charging or power outlet to anywhere that DC power is available instead of 110/220v like a boat or camper. I included a step file for remixing or adapting but also let me know if a back cover would be wanted and I can add one. Here's a link to the charger I used, I like the higher power charging capabilities for my laptop. https://amzn.to/4jk8YE9