Slant-D Reference Binder features no-pinch rings open and close. Locks with just one touch. Holds 25 percent more than standard round-ring binders. Inserts will not stick to polypropylene cover. Binder offers horizontal pockets inside front and back. Includes flat poly sheet lifters. Clear overlays hold custom title sheets. Durable heavy-gauge vinyl cover protects contents. Earned Ease-Of-Use Commendation from Arthritis Foundation. Binder offers 65 percent recycled content by material weight.