The yellow circle housing the bubble twists depending on which way you’re trying to align. Make a pencil mark on your wall and you’re set to mount things, hand heavy paintings, etc. I picked mine up to mount a pull-up bar and gymnastics rings I bought on Amazon Prime Day. I expected it to take at least a few swipes across the wall before the …
https://www.amazon.com/CH-Hanson-03040-Magnetic-Finder/dp/B000IKK0OI