Innovera CD/DVD Polystyrene Thin Line Storage Case, Clear, 50/Pack Durable translucent polystyrene offers media protection. Thin case takes up less space than a standard jewel case. Protects discs from dust and scratches. Exterior Material(s): Polystyrene; Media Quantity Held: 1; Media Stored: CD; DVD; Color(s): Clear. Protects discs. Manufacturer's limited one-year warranty.Innovera