Clear overlay on front, back, and spine for easy customization. Environmentally friendly material will not stick or lift copy from cover insert or contents. Made from acid-free and archival safe polypropylene. Documents remain secure with locking D-ring that holds up to 25% more sheets than standard round rings. Two clear inside pockets for additional storage of loose papers. Capacity Range [Max]: 5"; Sheet Capacity: 1050; Color(s): Black.