Acco/Wilson Jones Casebound 3-Ring Binder

Extra-tough, three-ring binder is built to stand up to the most abusive use conditions. It is almost indestructible with heavy-duty round rings for easily storing up to 550 letter-size sheets. Durable vinyl covers feature heavyweight inner chipboard core. Label holder on spine simplifies identification of binder contents. Case-bound binder also features metal hinges and 8-1/2" centers and 3-1/2" ring-to-ring dimensions.