The product is excellent - very satisfied.
Be careful.
I ordered through Aliexpress with delivery to Latvia.
The product was sent via DHL Express and was stopped at customs.
Filled out the customs declaration and paid a duty of 21% of the value.

very fast delivery to Moscow. three days. It seemed strange to me that the filter itself is not packed in any individual film. it just lies in a box.

It seems good...

I used someone else's and liked it, now I bought one for myself

It arrived very quickly, everything was intact. There are reviews on the Internet for the filter itself, there is nothing to add. On a hike, especially in summer, there is an unchanged thing.