✔【Tips】If you experience paper jams while using our 4x6 thermal label, we recommend cleaning the print head and rubber roller with rubbing alcohol or a soft cloth before printing. This will help to prevent paper jams from occurring repeatedly and ensure that your thermal labels are printed accurately ✔【Nelko Genuine】Compatible with Nelko PL70E thermal label printer and more. Print with the Nelko PL70E label printer for clarity and better print quality. You can print efficiently and clearly, making work easier, Note: Not applicable to PM220 Label Maker ✔【High Quality】Made of BPA-free materials, Nelko thermal labels are of high quality and can withstand scratches, water, dirt, dust, and grease. Even in bad weather, the information on the labels remains intact ✔【Ultra-Strong Adhesive】The Nelko thermal labels have ultra-strong adhesive with a high viscosity that ensures the thermal labels remain attached to any packaging surface during transportation. Each shipping label can be stuck on any packaging surface for a long time ✔【Advantages】Print shipping labels and internet postage labels for transportation platform and e-commerce platform. Such as FedEx, USPS, UPS, Shopify, Etsy, Amazon, eBay, PayPal, Poshmark, Depop, Mercari, etc Nelko Genuine 4x6 Direct Thermal Shipping Label 220 Labels/1 Roll, Nelko 4x6 Thermal Labels for Nelko PL70E Shipping Label Printer, Perforated and Strong Adhesive, Commercial Grade