Varicap6 Expandable 1 To 6 Post Binder, 11 x 8-1/2, Black, Sold as 2 Each Expandable binder with flexible posts, sliding channel tabs, label holder and one inside pocket. This expanding binder accommodates projects of any size and is designed to hold up to 1,500 sheets. Flexible posts and the sliding channel tabs provide neat, secure assembly. Organize all of your projects easily with the label holder on the spine for quick identification of documents. Look no further for binder versatility--inside front vertical pocket adds extra storage for any loose sheets.