Smith Corona 1" Core 4x6 Direct Thermal Labels 250 labels 6-pack (Compatible with Zebra and Eltron printers) White 4 x 6 inch Direct Thermal Labels on a 1 inch core for UPS, USPS, Fedex, DHL There are 250 labels per roll. 6-Pack meaning 1500 total labels. Made with top-of-the-line machinery in the USA Recommended printers: Zebra, Eltron and other desk top printers Smith Corona part number EDT4060AP and Uline part number S-6802