100 Pack Maxtek Premium Thick Assorted Color Paper CD DVD 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, 20 pcs each 100 pack total.