This Ergo magnifying glass to reduce the pressure on the back, neck, and eyes of doctors during work, allowing them to work healthily, easily, and efficiently. When you take care of others, Ergo magnifying glasses help protect your bone health, making it easy and comfortable for you to work every day. In both standing and sitting positions, the average weight of an adult's head ranges from 4.5 to 5.4 kg. When tilted, the neck load can reach 27 kg, which may lead to premature disc wear. Ergonomic magnifying glass with breakthrough capabilities.Breaking the concept of tilt angle, dentists used to work with their heads down, even when wearing magnifying glasses, they still had to lower their heads down. There is cord to fix frame on head to reduce press on nose.Muli-layer anti-reflection coating provides extramely hight resolution. Lenses IPD can be adjusted synchronously by the knob.
Magnification: 3X
Depth of view: 125mm
Field of view:95mm
Pupil distance: Adjustable
Working distance:450mm

Packing list
Loupe*1
Screwdriver*1
Cleaning cloth*1
Rope*1
Use manual*1