[mothered]

Edited :

Looks good, the font and color matches the rest of the description. If they're Intelligent Individuals, they'd realize that "Paper Mate gel" should also be written In Russian, but this denotes the product, so leave It as Is.

Although It's very minor and probably won't be noticed, the only thing I'd alter Is add a space between the "10" and the "X":

Spoiler:

Wanted to ask you also,
i was about to make 1pcs of the pens which will cost 1680 rubles
but it was easier just to add 0 next to 1 and let the price as it is

Yes, but the subtotal doesn't add up for 10 pieces and they "may" convert the currency to theirs.

As such and to be on the safe side, you'd need to adjust the figure.

Or maybe not to tell anything, just that we threw the pens from disappointment, and POP ?

SEing Is always a step-by-step process, so only provide the POP for now and see how they react.