7mm Slim Line DVD Case Double 2 Discs Holder Black 100 Pk
[DVDC-0057]

Very inexpensive, but you get what you pay for, the spine tends to split apart and if you drop them, they'll likely shatter... especially if you have a disk or two in them to add the extra weight. for the 1 or 2 cents apiece difference, switch to the 9mm size.