0 a piece of stiff folded cardboard with metal rings inside, used to keep loose pages in position
1 a hard cover with metal rings inside that pass through holes in paper documents to keep them together
That three ring binder had a profound effect on the studio.
Unlike previous editions, this third and final installment of the catalog was a ring binder with loose-leaf content, intended as a continually updated resource.
Soennecken also introduced the two-hole punch and the ring binder.
Based on military field manuals, the rule book was contained in a three ring binder.
File or ring binder holes can also be added to the main body of the form to allow for storage once the form has been divided into individual sheets.
In the beginning, the band used some original instruments such as a ring binder, and they still use an empty beer crate nowadays in their music.
The pages were organised as a series of pull-out reference files to be slotted into ring binders.
Organizers, notepads, and diaries also often use this size paper thus 3 ring binders are also available in this size.