4″ X 6″ Roll Direct Thermal Label Professional Direct Thermal Shipping Labels – Key Features:Qty: 250 pcs, 500 pcsLabel Size: 4 x 6 inches. 250 Labels per Roll, 1 Roll = 250 Labels. 500 Labels Per Roll, 1Roll= 500 LabelsExceptionally durable: Waterproof and oilproof.Broad compatibility: Works seamlessly with leading direct thermal printers including Zebra, Rollo, MUNBYN, Fargo, Elton, Data max, Sato, Intermec, NEX, and more.Easy separation: Perforation between labels for effortless tear-off.Hassle-free application: Self-adhesive labels – simply peel and stick, eliminating the need for additional taping.Wide temperature range: Suitable for application at a minimum temperature of 50℉, with a service temperature range extending from -59℉ to +149℉. Package Contents:1) Roll of 250/500 Shipping Labels Note: Kindly refrain from using tape on the labels.