Create professional-looking file folder labels for quick and easy file identification. Labels with TrueBlock completely cover everything underneath, so you can re-use mailing tubes, boxes and more. Bright white labels have permanent adhesive that sticks without lift or curl. Each sheet of labels is acid-free, jam-free and smudge-free. | Avery TrueBlock 21/32" x 3-7/16" Laser/Inkjet File Folder Label - 600 Pack - Assorted Colours