Built-in tabs are preattached -- just lift and label. Polylaminate is reinforced across the top edge and bottom fold for superior durability. Flat-bottom has a reinforcing insert for extra strength to handle thick documents, presentations, catalogs or manuals. Write directly on the tabs or use the included sticker labels. Folder Size Type: Letter; Max Folder Expansion: 2"; Folder Color: Assorted; Color Family: Multicolor.