The instructions need words. You get pictures that don’t really articulate things clearly. For example, towards the end of installation there are 4 screws designated to attach the two modules together. Those screws are shown as the same as screws used in an earlier part, but the screws are not the same, even though the pictures and letters state that they are. The screws almost seem too short to grab the threads, so much so that the start of the threads burr causing issues in getting the screws flush. This just seems like an incredibly over engineered product. Someone with too much time and who liked to draw a lot without any practical installation or mechanical experience. Although the product seems sturdy and built decent, the installation and over engineered design steals the thunder