Removable rings for easy recycling. Chipboard is made from 100% recycled material. Acid-free polypropylene. Rings are mounted on back lid to reduce wear on paper. Clear overlay on front, back and spine for easy customization. Extra storage for loose documents with two clear inside pockets. A portion of the proceeds from each binder purchased is donated to American Forests to help plant a minimum of 7,500 trees annually. Biodegradable within 5 years. CALIFORNIA NOTICE: California law prohibits any form of ?biodegradable?, ?degradable? or ?decomposable? labeling claims on plastic packaging and plastic products. As required by this law, Samsill does not make any such claims for its packaging and products offered for sale in California; nor does Samsill intend to imply to any customer in California that its products will breakdown in a landfill. Capacity Range [Max]: 1/2"; Sheet Capacity: 125; Color(s): White; Binder Sheet Size: 8 1/2 x 11.