DYMO 45013 D1 Tape Cartridge for Dymo Label Makers, Created Specifically for Your LabelManager and LabelWriter Duo Label Makers, 1/2-inch x 23 Feet, Black on White, Pack of 4 Pack of 4 Cartridges, easy Peeling for trouble-free application Available in black printing on white background Thermal transfer printing technology, no ink or toner required Adheres to most clean, flat surfaces including plastic, paper, metal, wood and glass Remove labels without leaving adhesive residue