Lens New Coming Loupe magnifier 20x Watch Repair Glasses Style Magnifier Eyewear Appraisal Engraving Repair Ect

Diameter of lens : 
LED powered by six LR1130 batteries (Not include the battery)
Focal distance : 0.5mm--1cm
Notice : 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