I'm not a big "all-rounder”, but I'm learning something new somewhere. I did a little research and figured they would work well with the low voltage CAT6 cables that run from my security cameras -> attic -> through the wall of my bonus room. any instructions, just looked how big the hole in the wall should be and cut it out with a utility knife. - It was a lot stronger than I expected when screwed into the drywall. - Installation took less than 2 minutes. Cons: - I didn't notice! Did exactly what I wanted. Overall: I would recommend this if you need an open box for LOW VOLTAGE cables (e.g. coax, ethernet, speaker cables). It works easily and is very cheap. A NOTICE. I paid full price for this item and nobody asked me to rate it. I spend tens of minutes to hours looking at Revain reviews before purchasing a product, so I know how helpful photos can be in deciding what's right for you.