The Brother DK-11201 29x90mm White Thermal Label (400 units) (QL500/550/700) is part of Brother's DK range of pre-cut labels, sold in rolls and made of direct thermal paper, eliminating the need for ink cartridges, toner, or ribbon, as the image is printed by the heat of the label printer itself. The printer automatically detects the length of each label using a chip embedded in the roll, cutting precisely between each one without wasting paper. The back is self-adhesive, ready to stick onto boxes, envelopes, folders, or products, and the printing surface maintains good legibility of the printed text and barcodes. Measuring 29x90mm and with 400 labels per roll, it's the classic address label format in the DK range, and one of the most commonly used sizes in the QL-500, QL-550, and QL-700 printers. It is suitable for sending mail, labeling envelopes, or identifying folders and files in an office.