Used for a cruise as the walls and doors are supposed to be metal and these should stick. Only worked on the door. Slid right down the wall. Wouldn't even hold my lanyard. I will stick with Command hooks.
Pros
They’re perfect for renters who want to hang items without damaging walls or other surfaces
Cons
Hook may not be suitable for use with items that are easily damaged
Due to COVID, we are keeping windows and doors in our classroom open as much as possible. Other magnets purchased blow off with just a breeze. These magnets hold on even with stronger gusts. I use a few with their hooks to hold charging cables off the floor, but most I just use them as regular magnets. They are so strong that I appreciate the hooks when I am moving them - it gives something to grip as they need a bit of a tug!