1,000 Pack Maxtek Premium Thick Assorted Color Paper CD DVD Blu-ray Disc Sleeves Envelope with Window Cut Out and Flap, 100g Heavy Weight. Red, Green, Blue, Yellow, Black Maxtek Premium Paper Sleeves With 4 Inch Clear Window. Window covered by transparent film. Material: 100g Heavy Weight Paper, better quality and thicker than regular 80g paper. Affordable, easy to use. 5 Assorted Color, Red, Green, Blue, Yellow, Black, 200 pcs each 1,000 pieces total. 100 pieces per pack, 10 packs.