Keep your CDs safe in these ring binder storage pages. Double-sided sheets hold CDs and DVDs. Made of polypropylene, so your discs easily slide in and out and are cleaned each time. Punched to fit a standard three-ring binder or CD case (sold separately). This product will be cheerfully replaced with one of equal value if defective in materials, manufacturing or packaging at the time of purchase. Media Sleeve Type: Double-Sided Refill Sheet; Media Stored: CD; DVD; Disc Capacity (text): 4; Material(s): Polypropylene.