90mm Diameter Precision Bullseye Bubble Spirit Level with Mounting Hole

Looked like a great product, I installed it with double sided tape and all looked great in the drive way. Drove 800 miles to camp and went to use it at the campground and their was no bubble to be found. Not much use without a bubble to level with. I am now out of my return window so into the garbage it goes.

Works as expected

First time I needed to use it, the bubble was gone. The thing I needed to see that my fridge was in operating range, and the bubble had vanished. Don't know why, but I wasted the money for this item. I had to use another way, and wasn't sure if I would hurt the fridge

The molded base is uneven. As a result, depending on orientation, the direction and amount of error varies. I returned it immediately.