This eco-friendly round ring binder is constructed with polypropylene film over paperboard and adhesives that do not release Volatile Organic Compounds into the atmosphere. Open and close triggers allow easy access to important documents. Heavy-duty metal rings and a durable hinge provide for long-lasting dependable use. 100% recyclable and made from the highest post-consumer recycled content in the industry. Maximum Capacity Range ("): 1 1/2 in; Sheet Capacity: 275; Color(s): Black; Binder Sheet Size: 11 x 8 1/2.