Staires?

Stairs

Is it a black iron string?

They are stacked in steps.

It's 200 times bigger, so you can probably see something that's fibrous.

Here is the equipment I used.

As usual.

Now let's double it.

glasses wipe

It is a glasses wipe that you can get as a bonus when you buy glasses.

I thought it was a non-woven fabric, but when I zoomed in, I realized it was a micro-fiber woven fabric.

The fact that the width of the warp and the weft is completely different also has meaning.

thank you always.