I needed some place to put my 2019 Kia Niro 120v charger. There were several good designs floating arount but all of them were designed to be mounted to a wall. My garage had a 3" metal pole where I wanted the charger to be. I was able to borrow specs from a few other designs and combine them along with my own wants to build a pole mounted setup. It used several u-bolts to connect the bits together and hold them tight to the pole.