no worries mate, just
FYI, you can also buy the 0.3mm pens and put their spare 0.03mm tips in them
I did that with red and blue pens for make letters in books/honours.
Be prepared though, they are quite weak and will need a ton of coats or brown+black as a shadow. Also, brown is more realistic than black on a banner
https://www.eckersleys.com.au/products/copic-multiliner
https://www.eckersleys.com.au/products/copic/multiliner/copic-multi-liner-sp
This is the one (and others there like it) they also do student discounts