Wax ink ribbons for printing on paper and gloss labels.
They are available in various sizes.
Inches refer to the size of the core around which the ink ribbon is wrapped.
Their winding can be either in or out. (depending on how it is rolled (inside/outside).
Choose: depending on the label dimension you want to print & depending on the type of printer you have.
More information on the correct use of ink ribbon here:
➤ How do we choose the right ink ribbon based on label & printer?