10Pcs Bubble Spirit Levels Mini Circular Bullseye Bubble Level Small Round Spirit Level Measuring Layout Tools (10x6mm, Non-Adhesive)

Very small

These are good, they are nicely uniform in size and indicate the level well. I use them in 3D printed components and they work well.

Purchased a pack of circular bubble levels from Amazon Haul for use on several turntables I have. The levels are just fine and will do the job. My 3 star rating is more a rating of myself not reading the item description. The levels are much , much smaller than I realized. Oh well, they will work and hardly cost anything...😉

Yes, these are small. They are perfect for adding them to a tripod that might not have a built-in level but has very little space for one, which is exactly why I got them. They have a nice recess on the bottom for adding a drop of E6000 glue or silicone adhesive to glue them down to something. They are not all going to be consistent or perfectly accurate. They are good enough for rough leveling a tripod (e.g. a small telescope on a small, manual alt-az mount, or a photographic tripod), but don't expect to use them for any critical leveling application.

Perfect for leveling a 3D-printer platform.

Theses turned out to be better than I expected. They are of a thicker wall material than others I have bought and has an oil not water inside. Laying on a known flat surface only one had a bump that caused it to be off. A quick sand it was fine.

Its small so it can be placed anywhere, they don't come with adhesive but double sided tape is cheap and the levels themselves are affordable so it works out. I glue em onto tools, work tables, drill presses, and other things and I still have a bunch left.

My error for not examining the actual size and dimensions before purchase. These are small enough to be completely useless. Can't distinguish the bubble and when you do find it, it doesn't appear to move freely, often sticking slightly. I wasted my money on these. Careful you don't too.

I have never seen such small mini bubble levels and, they are fantastic for what I wanted them for. I have mounted them behind each of my drills to assist in achieving a straight hole.