Strong, CD-safe pages are double-sided for increased storage. Non-woven material cleans discs. Works with three-ring binders or ring binder kit (sold separately). Keep your CDs safe in these ring binder storage pages. Manufactured from strong, CD-safe polypropylene to give your CDs ultimate protection. Unique two-sided, non-woven material helps to clean the CD each time it is placed in the holder. This product will be cheerfully replaced with one of equal value if defective in materials, manufacturing or packaging at the time of purchase.