Compass 4.5 cm in Chinese (40 pcs)

Compass is used to determine the direction. The compass needle is a magnet. This needle is pivoted on a sharp needle to minimise the friction acting on it. The weak magnetic field of the Earth is then strong enough to affect the compass needle to point to the North and South direction. 

This compass is printed in chinese character. The translation is : 北 (North), 南 (South), 东 (East) and 西 (West).