Mini Bubble Spirit Levels 30x9mm Spirit Level Bubble Measuring Instruments Layout Tools

I put it in a vice and filed on it with a coarse file until each level fell out. (They are NOT glued into the case.) Then I epoxied them to tripods.

These are very small and work very well. I keep a couple in my edc kit.

These are not square or true as a level goes. I compared these to 3 other known true levels and they were both off. They aren't even consistent between each other. One is close to level and the other is just stupid off. Don't waste your money or time. Amazon must know these are junk because they didn't even want them back when I put in for return. Just a straight up no return refund.

I added one of these to my front rifle rest, to check rough level while setting up. Plop down the rest, check, add the rifle and rear bag and then adjust with level attached to the rifle.

Nice markings and steady bubble. This will not mount perfect on every drill but worked for me

I think it costs more than it should have. I believe that in the description it said that the "stick on" part didn't actually stick on.It wasn't leveled perfectly but you kind of eye ball it. It's small and compact. It's nothing too special. I think it is definitely overpriced for what it is but I was in a nick of time. I personally wouldn't purchase it again solely for the price and it not being as accurate as I would like it as well as it not able to stick on things without making another purchase outside of this.Good luck with your decision making.

I bought these for my camera AND for my garage door. I used double sided tape and put one on each of the electric eyes. Once in a while they get knocked out of level when I move my garbage cans in and out of the garage.

I measured the accuracy with a digital meter and got about +/- 0.1 degrees for the large bubble, if one get the bubble centered well. It was also repeatable. The small bubble is much more, but did not measure that.