Feature

Suitable for hands free inspection repair industry, industrial electronics, laboratory, medical, identification jade, coins, jewelry, jade, porcelain, bronzes, stamps, antiques and many other fields

Diameter of lens : 16mmLED powered by six LR1130 batteries (Included)Focal distance : 0.5mm--1cmNotice : It is a useful and portable observing tool, but generally, if you wanna observe some objects, you can't use your right and left eyes to watch at the same time, just only one eye and also you'd better take turns to see and be near from the things that you want to look.

Package Includes :

1 x  20x  Headband 2 LED Magnifier