YMGBHNKJLS 4Pcs Small Circular Bubble Levels with Double Sided Adhesive Bottom Mini Little Stick-on Bubble Spirit Level Measuring Layout Tools Levels (25x10mm)

This are way better than they should be for the price. In spite of their small diameter they are VERY useful. I put 3 on the top of a lap steel guitar. The slide guitar weighs a ton and sits on 3 adjustable legs. Because it is narrow it has to be level to be stable. These work wonderfully! I'm very pleased.

Perfect for my application. The stick on feature was a big help. Use it all the time with my portable equipment that needs to be plumb. Good value.

Works well like a bubble level should. I wanted it to be small so it would be unobtrusive and it is. Am very happy with the quality and the price. Will definitely buy again!

While these 15mm x 6mm or 15mm x 8mm levels do what they should I find they are too small to make easily accurate leveling. I found them very difficult to finely tune level on my panoramic tripod head because the bubble target area is just too small. I recommend going with some larger, I found the18mm x 9mm or above sizes to be much easier to adjust to accurate leveling.

Well made sticky backing works to hold small enough to be easy to place.