JINHAO 20 Deep Blue Retractable Fountain Pen, Fine Nib (F) 4-3

Knock-type Jinhao fountain pen, brand new and unused. The deep blue body seems to be rare. Slim and stylish design, about 12mm in thickness, about 18g in weight.
Nib width F, about 0.5mm.
I think it's easier to write with than EF.
It's the same size as Pilot Capless Decimo, a fountain pen from our country's proud manufacturer (lol). How about the amazing writing experience?
Since it's a Chinese product, the original box has slight damage, although it's new. A converter is included. I have inspected the knock mechanism myself to check if it operates smoothly (I haven't touched it with my bare hands).
And what's more, Pilot cartridges can also be used, so I'll include one Pilot blue cartridge as a bonus!! You can start writing immediately!
The Pilot CON-40 converter is compatible.

I have listed four of the same item.
I had planned to sell the last one in a previous listing, but I was able to obtain only four more, so I'm selling them. Further listings are undecided.
Since they are new and unused, I am using the same photos. It may look like the manufacturer's official photos, but I took them myself. (I have a professional photographer in my family)

Shipping will be via Yu-packet Post Mini, but please be aware that the original box may be folded or damaged if the post box is narrow due to the envelope.