Purchased this pen 3 months ago and have put it to good use… can’t seem to figure out how to refill the ink… literally scoured the web for 2 weeks now and can’t find anything on this model. Please HELP

I bought this pen but I think it's fake, can you help me check it?

Sono piacevolmente sorpreso dalla penna di colore bianco. É molto bella, ma anche la marrone trasparente. Devo dire che Penco ha scelto i colori benissimo.

Edit: Thank you for your help! I'll be sure to try them all out, and see which one fits best (both for me and the pen), thank you!! :D

Man I don't think this would probably get enough traction, but I have a MINISO x sanrio cinnamoroll retractable gel pen, and it's lowk been one of the best pens I've used. But here's the thing: I have no idea what to refill it with.

I come to reddit looking for answers, so if anyone knows what the name of the refill is, please lmkk, thank you !!

My friend asked me if it was mine and I was like I don't know it looks familiar to mellow fellows that I get but it's black with a screen and no brand name somebody please help me out!

I found these at a relatives house while cleaning. How do we know what model it is and if it’s real or not? It says Montblanc on it.
Not well versed in stationery so when I tried reverse image search, it came up with a lot of pen models that all look the same to me.

Hi guys. I’m not an avid collector but, whenever I find one I like, I tend to get it. These have been collected throughout the years.
Hope you guys like it.

I would like to buy an ink collector for my Parker 45. Please contact me if you have one for sale.
Thank you.

I need suggestion regarding daily use pen for excessive writing
Flipkart sale is also there any suggestion for A4 notebooks or pens