It's just a complete nonsense. I bought it and two pairs. The glass makes you dizzy, the little rubber bands on the nose keep coming off, the plastic cuts you, and finally, the arms that rest on the ears keep coming off constantly

Slightly makeshift but OK for its price.
The magnification it offers is not the best for tired eyes in 45-year-olds.

For their price, they are great! I bought 3 pairs and both young and old found a way to enjoy their hobbies and small tasks (nails, etc.) by seeing the "details" that make the difference.
Pay attention to the rubber band. It may seem strange, but it has its reason. It keeps the glasses that should "sit" on the edge of the nose, whether someone wears their own prescription glasses in between or not.
That's how they work properly.

Very powerful lenses, very lightweight frame, nice carrying case and overall they make your life easy for small tasks you want to do...

The whole glass is a magnifying lens and scratches somewhat easily. It cannot be adjusted or used for normal vision and is not used as protective eyewear. I got it for electronic work, but I think it tires me out more than it helps me, but I also have good vision.