Maxtek Premium Paper Sleeves With 4 Inch Clear Window.</br>Material: 100g Heavy Weight Paper, better quality and thicker than regular 80g paper.</br>Affordable, easy to use.</br>Window covered by transparent film.</br>100 pack total.</br></br>Product Description</br></br>Maxtek white Paper Sleeves With 4 Inch Clear Window. Window covered by transparent film. Made by Premium 100g heavy weight paper.</br><br/>http://www.amazon.com/gp/product/B00GXOOL4S