Flexzion 100 Pack CD DVD Thick Paper Sleeves (Black) Standard Envelope Cases Display Storage Premium with Window Cut Out and Flap for Music Movie Video Game Disc Cost efficient CD sleeves with window & flap Matte Non-Glossy Black Paper CD Sleeves 100 pieces premium CD sleeves per pack; Affordable, easy to use. The sleeves have a plastic window (covered by transparent film) for easy viewing of the disc The flap is held closed by a slit in the back, perfect for easy opening and still protects the CD from dust