High-quality, double-sided pocket pages (9 pockets on each side), that fit in almost any D-Ring-Binder, for storing and displaying up to 18 double-sleeved cards per page. 50 pages per pack. 10 pages holding up to 180 double-sleeved cards. 9 pockets on each page side, completely free of PVC and acidic materials. 11-holes area on the spine for flexible binding.