The flat surface helps to keep labels neat and legible. Scienceware® Write-On™ Labeling Tape or any tape with a 7.6cm (3") ID core will fit on the drum of this multi-roll dispense. Large writing surface, 10.2 x 15.2cm (4" x 6") for preparing tape labels. Built in serrated cutting edge. Includes disks to prevent rolls from binding against each other.