Only available in boxes of 3 X cartridges (3 each per box). Each staple cartridge has 5000 staples and come in sizes 8MM and 10MM. The 10mm are slightly longer and thinner than the 8mm, and these are the staples that ship with the BooXter Family of Binders (exception is the BooXter Zero family that use different staples). There is no hard formula for which size works with different papers, but the 8mm's are thicker diameter metal and do penetrate deeper in some paper stocks than the 10mm's. As paper density is different in every paper, testing is the only way to ensure the staple will penetrate the full number of sheets in your book block and is always recommended prior to production.
