The Teachers' Lounge® | Portable File Box on Wheels
PortaFile Expanding File Wallet | Ultimate Office
Accordion File Organizer with Handle, Alphabetical Tabs, Expandable Portable File Tote for Letter Size Documents, Home, Office, 13 x 10 x 3 in, Black - Walmart.com
Amazon.com: Rolling File Box with lock, File Organizer Cabinet with Wheels,Fireproof Document box with Lid for Home Office, Portable Collapsible Mute Rolling File Cart for Hanging Letter/Legal Size Folder : Office Products
Iris Black Weathertight Portable File Box with Handle | The Container Store
Amazon.com : Pendaflex Portable Desktop File, Side Handles, Hanging File Folders, Tabs & Inserts, Letter Size, 9-1/2 x 12-3/16 x 6 Inches, Black (23013) : Hanging File Folders : Office Products
Juvale 25 Pocket Accordion File Organizer With Handle, Alphabetical Tabs, Expandable Portable File Tote For Letter Size Documents, 13x10x3 In, Black : Target