The website I bought this from says the stamp “can be re-inked.” When I got it, the package clearly states (with multiple pictures and six languages, taking up the entire back of the box) that the stamp pad contained therein is most assuredly not to be re-inked.

I asked the sales department to clarify this. From the comment I got back, apparently “re-ink” now means “can purchase replacement cartridge.” While I did indeed purchase a replacement cartridge, so I could continue to use the stamp while searching for a bottle of ink that invariably has gone missing in the meantime, I did specifically choose this model because of this capability.