Avery 4191 direct thermal labels are designed to be compatible with a variety of thermal printers including the Seiko Smart Label Printer(R), DYMO LabelWriter(R) and Zebra(R) printers. Each durable roll is individually packed in a special bag designed to protect each roll from light and moisture. These multipurpose smudge-free labels are resistant to water, dirt, dust and grease. The adhesive helps labels stick and stay in place, making them perfect for a variety of applications. Great for barcode labels, UPS(R) and FedEx(R) shipping labels, food & beverage labels, inventory labels, ID labels, and more.