Create a personalized system - add one or more pockets using unique bin connectors sold separately to adjust space between files. Put together a combination to maximize your organization and efficiency. 3-7/8" Deep files provide extra capacity. with four bin connectors to adjust spacing between files. Wall mount (hardware included) or hang with Partition Hangers sold separately. Global Product Type: Hanging File Systems-Expandable Multiple Pockets.Hanging File Systems Type: Expandable Multiple Pockets.For File Size: Letter.Overall Height: 13".Width: 13.4". Depth: 3.90".Number of File Pockets: 3. Color: Black.Material: Plastic.