This is a large box of hundred-pound, high-quality, low-dust paper, specifically designed for use in a Braille embosser. The paper is continuous-fed, meaning sheets are fanfolded into the box in one unbroken feed. Pages are perferated for each sheet, so they can be easily separated after the job is complete. Pin-fed tractor feed strips are also present on both sides of the page, again perferated for easy removal once the paper has made its way through the embosser. Finally, each sheet is 19-hole GBC punched, ready to be bound into a book. By now, you've probably guessed that this paper is not suitable for use by individuals who do not own a Braille printer.
(From the Writing Braille shelf.)