13 ring Empty binder only(Indexes not included). No imprint. Opens and closes easily to insert, discard and rearrange your information quickly. Ring size is 1″. Binder holds 6 1/2″ x 3 7/8″ refill sheets and indexes, and 2 1/2″ x 3 7/8″ overlapping short forms. Capacity is 200 sheets.