Zebra Technologies Z-Perform 1D thermal label in bright white is made of paper and has black sensing mark. Label measuring 1" x 2" is suitable for direct thermal paper applications and is compatible with QL220/QL220plus/QL320 printers. Adhesive type: Permanent. Ideal for direct thermal paper applications that require limited durability. Direct thermal available in 5. 3 mil thickness. Paper offers an inexpensive way to print in a variety of general-purpose applications, while synthetic offers more durable, long-lasting results with resistance to abrasion, moisture, and chemicals. Bright white. Material: Paper. Number of labels per roll: 350. Features: Black sensing mark. Thermal transfer available in 7. 0 and 9. 5 mil thickness. Compatibility: Zebra printer: QL220, QL220plus, QL320, QL320plus, QL420, QL420plus, RW220, RW420, RW420 print station, P4T. Print technology: Direct transfer, thermal transfer. Dimensions: 1"(L) x 2"(W), inner diameter: 0. 75", outer diameter: 2". Direct thermal technology does not require a ribbon, instead, a chemically coated heat-sensitive material produces images as heat is applied to the surface. An uncoated direct thermal paper facestock with a permanent acrylic adhesive. Suitable for use in a wide variety of industrial applications especially shipping/mailing labels. Zebra Technologies Z-Perform 1-D Thermal Labels - Great for Shipping. Zebra Z-Perform 1-D thermal labels are ideally suited for shipping, but can also be used for a number of different applications. Use them with either direct transfer or thermal transfer printing methods to create inexpensive general-purpose labels that will last. These labels have a self-adhesive coating, making them simple to use.