Common Applications of 4"x6" Direct Thermal Labels 4"x6" direct thermal labels are used for various applications, including Amazon FBA/Endicia/eBay/USPS/UPS/Fedex/DHL shipping labels, address labels, barcode labels, warehouse, postage, mailing & shipping labels and other identification purposes. Premium Quality Direct Thermal Labels 1、The labels are 100% compatible with most direct thermal printers: Rollo, Zebra, MUNBYN, Polono, Phomemo, Jadens, Fargo, Intermec, Datamax, Printronix, etc. 2、Our 4x6 inch direct thermal label is made of premium quality paper raw material. The labels go through the printer smoothly, and the end of roll labels are nicely rolled and do not jam when using the very last one on the roll. High quality label paper ensures excellent color performance and prints clear images and easy-to-read barcodes. 3、Our thermal labels are designed with strong adhesive backing that sticks to plastic, paper, package boxes and smooth card board, saving you money on tape. Just peel and stick. 4、Waterproof and Oil-resistant. The thermal labels are waterproof and oil-proof, preventing information fading. They are remarkably resistant to stains and scratches as well. 5、Easy to tear off. Built-in perforation lines help to separate labels from labels easily, preventing waste caused by accidental tear-offs.