USDM Paper Sleeves with window and flap allow for the CD or DVD disc inside to be visible. The outside flap prevents disc from slipping out. Paper sleeves are a light weight, low cost, and flexible way to package your discs. This type of packaging is great for in-house distribution, products that will be included inside a second packaging (e.g. a box) or for any distribution in which image is not a key factor and there is little danger of damage. These sleeves fit all standard CD and DVD media.