Case of 500 4x6 blank thermal Labels ⭐️ WORKS WITH USPS/FEDEX/UPS/DHL AND MORE! ⭐️ these are standard 4”x6” size and are compatible with all thermal printers including ZEBRA , dyno, rollo plus more! ⭐️ labels are the best quality you can get / made by ups / UPS BRAND & they are 100% blank on the label side