Universal Shipping Series Labels (GR): 4x6 inch (101.6mm x 152.4mm) thermal printer labels, 500 labels per pack. Compatible with FedEx UPS、 The United States Postal Service Shopify、Etsy、 Amazon, eBay, PayPal, Poshmark, Depop, Mercari, etc Quality: The shipping label is BPA free and of high quality, capable of withstanding scratches, water, dirt, dust, and grease. Even in adverse weather conditions, the information on thermal labels remains unchanged. Ensure reliable delivery: Thermal labels enjoy anti-interference and wrinkle resistant printing, clear printing of barcodes, QR codes, and text, reducing the risk of incorrect delivery. Using highly adhesive labels can securely stick to boxes, emails, and envelopes, reducing waste and saving time. Easy to use: Our thermal tags are designed with convenience in mind and are a must-have for small businesses. Featuring pre cut lines, easy to tear apart, super strong adhesion, firm adhesion, and a surface suitable for writing Note: When storing thermal label paper, attention should be paid to temperature and humidity. It is best to place it in a dry, dark, ventilated, and chemically free place. If the label paper is not used up, it is recommended to put it into a sealed bag or box as soon as possible.