Barcode Label - AirTrack - 2.25 x 1.25 White Polypropylene Label - Thermal Transfer - Permanent Acrylic Adhesive - Perforated - Wound Out - 1" Core - 5" Outer Diameter for Desktop Printers. 2100 labels/roll - 24 roll case. Also Available as a Roll (Part# AT2200TW-2-1-2100-1-R). (Compatible 17154).