4 Rolls White 2.5x1.5 Direct Thermal 1000 Labels Per Roll for Zebra Eltron Barcode Shipping Desktop Printers ZP450 LP2844 LP2442 TLP2844 GC420d GC420t GK420d GK420t GX420d LP2824 Self-stick adhesive, perforated between each label Core Size: 1" Outer Diameter: 4" **NO RIBBONS REQUIRED** Compatible with Zebra Eltron, Datamax, Intermec, SATO, Fargo, and other thermal printers.