The DYMO D1 Durable Label Tape, part number 1978366, is a thermal transfer label cartridge designed for use with DYMO LabelManager systems. This tape produces white print on a red background, measuring 1/2 inch in width and 10 feet in length. The thermal transfer printing technology ensures that the text resists smearing or fading, making it appropriate for labeling assets, cables, shelves, or other items where label integrity is important over time.