I received the Oiamik Blue Light Glasses for free in exchange for an honest review. They come in a light weight, plastic, black frame. I think they are very comfortable to wear. I could use a smaller width though for my face. They fit a normal size adult though. The blue light functions using a small button and you shine it on to glasses and testing card to show if they are still working properly. You will see purple on the card where the glasses are not blocking. It comes with 2 wiping clothes, which I find clean great. They come in a sturdy box to keep everything in. I would recommend a small pouch too for when glasses are sitting next to computer and you don't want the box on your desk. Over all, I really like them. I would go for a smaller size though. I do not claim to know anything about blue light, so I would look into how these work with protecting your eyes.
This card shows where the blue light got through and where it didn't. This shows that the glasses are working properly.
This is what they look like on my face. I have a very small, oval face and think these stick out too much on my face, but I know the style is large right now. They are fine on a larger face like my husband's.