DYMO D1 41913 Black-On-White Tape, 0.38" x 23' - Designed to work with LabelManager and LabelWriter Duo label makers, DYMO D1 labels are both high quality and versatile enough to handle most labeling tasks. Available in multiple color combinations and widths, this label maker tape is a great way to get organized. The label cassettes also print using thermal transfer technology which prints without expensive ink or toner.