Leapair 320 Disc CD DVD Bluray Storage Holder Solution Binder Book Sleeves Carrying Case PU Material: PU construction is flexible, durable, waterproof, ventilated, and easy to clean. Organization: Each storage file is made up of 8 CD sleeves, counting front and back, to ensure easy categorization and organization. Binder: 3 ring binder design that can be opened to add, remove, or reorganize the sleeves. High Capacity: Maximum capacity of the CD wallet is 320 CDs. Extra CD Sleeves: On top of the 320 CD capacity, storage files that can house an additional 80 CDs are also included to add total capacity to 400 CDs