Size: Customized Size
Using guangdong quality compass, the compass will not have bubbles, you can rest assured to buy and use.
Can be used to SOS for help, send signals, guide diractions, making hunting sights and so on.
Daily life helper, fluorescent agent detection, money checking, outdoor catching, etc.
Irradiation distance up on 20 meters, can be used continuoustly for 7 hours.