Printer Issue Mac I think

Hi There,
I have just bought some magnetic business cards to print on at home. These cards are quite thick and VERY glossy. I have a canon mp610 and I'm not sure what print settings to use :/

any help would be appreciated even though it's a strong ask!

First, you ought to find out if you can even print to them with that model Canon. Most printers have very specific instructions about what kind of media can be run through them. Drop Canon support an email and ask.