Woocommerce admin notesfor every single product

Hi,

I want to leave a note on every product that only admin can see. Is it possible? When somebody orders e.g 3 items then admin can see the notes on each item e.g
item 1: needs to be graded first
item 2: “website link”,
item 3: Needs to be bubble-wrapped

How could I accomplish that?
Thx!