OfficeSmartLabels ZE1214400 4 x 6 Inch Direct Thermal Labels Compatible with Zebra (20 Rolls, White, 350 Labels Per Roll, 1 inch Core) 20 Rolls / 1" Core / 350 Labels Per Roll Direct Thermal / Rounded Corners Perforations Between Each Label Our High Quality Labels are compatible with most Thermal Transfer Printers including Zebra, Eltron, Fargo, Sato, Datamax and Intermec SOJITEK does not sell Zebra/Eltron branded labels. "Zebra", "Eltron", "Datamax", "Intermac", "SATO"and "Fargo" and other related branded product names and SKU trademarks are trademarks of their respective owners and not SOJITEK. Neither Zebra/Eltron nor any of the other printer companies mentioned above sponsor or endorse any products made or sold by SOJITEK