2. The ring on the upper part is for neck strap hanging, which will be sent as a gift with the loupe. Using the neck strap to hang the loupe on chest, it can avoid lost and easy to use.
3. The ABS soft plastic ring on the bottom (the side will touch with ground glass) is designing for preventing scratching.
Optical design:
Diopter adjustment, large visible area, adopted multi-layer coating and 4 pieces 2 groups programming, reducing distortion greatly and eliminating chromatic aberration as much as possible.
Details:
Loupe height: 105mm
Loupe weight: 161g.
Loupe Diameter: 39mm
Package: 1 eTone 6x loupe, 1 neck strap, 1 box.
PS: neck strap color and style may variety, depends on current stock.