Well I wonder what the old Four Holes buttons were like...
These are certainly very...functional...and do, indeed, have 4 holes.
And are not shy telling you about it.
They are made of some sort of light metal (slight colour variations in each roll), are 15mm wide and there are 36 of them rolled up in paper.
4 of these rolls come in a box - so 1 gross (144) in each box.
This listing is for 1 roll of 36 buttons.