Write-on tabs accept pen, pencil or permanent marker. Heavy-duty plastic tabs?will not curl or tear. Self-stick adhesive is repositionable and removable. Large writing area and bright colors for visibility or white for maximum readability. File Insert/Tab Type: Adhesive File Folder Tabs; Color(s): Assorted; Tab Material(s): Plastic; Assortment: Blue; Green; Magenta; Yellow.