MFLABEL 12 Rolls of 1000 2-1/4 x 1-1/4 Inch Direct Thermal Perforated Shipping Labels,SKU labels (12 Rolls) Size: 2.25"x1.25", 1" core, 4" OD 1,000 labels per roll, total 12,000 labels Compatible with Zebra, Fargo, Elton, Datamax, Sato, Intermec, NEX and other direct thermal printers Exceptional print quality, strength, opacity and brightness Minimum application temperature: 50; Service temperature range: -59~+149