Chiloskit 66mm Bullseye Spirit Level Round Bubble Spirit Leveler Tool Rv Appliances,Accuracy 30' /2mm (Blue)

3-star UPDATE: For 8 months it worked well. Then I left it on the dashboard and I guess it doesn't like the heat. Started leaking, and once it started nothing will make it stop.5-star ORIGINAL: Large, easy to see on any background, RV feels relatively level while bubble is away from the edge. If I could change anything, I'd increase the range of tilt slightly, but this is great for knowing the difference between "good enough" and "perfect". Just toss it on your countertop or floor to verify you've found the perfect spot.

Not bad for the price. It is not as accurate as a metal level could be, but this does the job in any case. One could always sand this tool to perfection if uber accuracy would be needed. It certainly helps with bubble visibility to paste a bit of white paper on the bottom.

I am using it for my telescope mount. It is more easily read on a black surface with a thin piece of white paper glued under it. Otherwise excellent.

Worked great

Does not show up well on anything but white or other light colored surfaces. Buy the water clear one instead of the colored ones.Even though it will still have the same problem it will be a little easier to read. What I have to do is stick a piece of white paper under it to easily read.

Excelente

I bought this to use on an upcoming RV trip. I think it's gonna be perfect.

I use 2 and more of these to setup machines to get them level quickly and are for the price, they are accurate, not aerospace but good enough for most jobs.