What kind of button compass is the best for direction
When you're looking for a compass, you'll likely to choose a cheap and useful compass. A button compass is just the right choice for you. It is not expensive, but can point direction for you.
There are two types of button compasses. One is oil filled compass. The oil filled magnetic compass is very beautiful and has a better plump looking. The top case of this compass is transparent. The oil inside are used to eliminate static electricity so that the compass will have more precise direction. The dry compass is a little more compulicated to produce. We need to paint anti-static after we finish the installation. 99% percent of our customers are using oil filled compass for diameter size below 35mm.
You see there is a groove at the compass edge. This is designed for installtion on other products such as toys, walking sticks, whistles, etc. If you order 1000pcs, we can change the inside plate design to your custom design.