This magnetic compass is 9.6 diameter, round shape with plastic case and clear top. It can rotate to point North. The sclae bezel is movable. It fits for 20mm width or smaller wrist strap.
Specification:
Material: ABS plastic, liuquid oil filled
Compass Size: 9.6mm diameter
Fit for max 20mm width wrist strap.
Oil filled compass may have bubble. We intend that our compasses are free of bubbles; however, if a small bubble forms in the liquid-filled capsule, it has no influence on the accuracy of the compass. Its appearance and disappearance are due to changes in temperature and atmospheric pressure.