Avery® Thermal Roll Labels, 2-5/16"x4" , 300 Labels/Roll-4 Rolls (4191) - 2 5/16" Height x 4" Width - Permanent Adhesive - Rectangle - Thermal - Bright White - Paper - 300 / Sheet - 300 / Roll - 4 Total Sheets - 1200 Total Label(s) - 1200 / Box - Water - Permanent Adhesive, Scratch , Smudge , Grease , BPA Free, Stick & Stay 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 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.