While not perfectly precise, the brand is quite close. The attachment method is a clip. This is satisfactory.

To use the compass for your desires, you must concentrate to get a precise reading.

These compasses are not very accurate. The bezel turns, but it's too stiff considering their size. I had to glue two of the four compasses immediately because they came out of their housing. They're nice, but not very useful.

The item is too small.