PM Company Direct Thermal Labels, 4 x 6 Inches, 1-Inch Core, 250 Labels per Roll, 16 Rolls per Carton (PS46121) For use in Zebra, Datamax, Sato and other direct thermal desktop printers High performance, low cost, white direct thermal labels Typical usage: shipping labels, product identification, bar codes, bulk/bin labels, UCC128 labels, general purpose permanent adhesive Perforated with 0.125" gap Carton includes 16 rolls