Faber-Castell: Grip Fountain Pen converter

[c.catlover]

What is the catalog number for this converter or can you provide me with a link where I can purchase one in the States? Can the pen be converted into an eyedropper? Thanks.

[LauraLamagumi]

¿La pieza gris que va dentro se tiene que mover o me ha llegado roto?

[marialnrosa]

Hello. You claim that the ink is erasable. Can we use a regular eraser?

[tradcathminecraftboi]

I got this for my Faber Castell Grip fountain pen with fine size nib and keeps getting loose. Even if ink doesn't leak at all it still gets loose which is really scary😬 help pls:) how do I put it in properly so it doesn't loose anymore:)))

[karshn]

What is that ink color royal blue or what

[MD-czen]

When I use the ink converter for this fountain pen, it leaks, like a lot. How do I fix that?