👑LABEL SUPPLIES: Direct thermal shipping labels 1000 for 1 pack, 4000 labels 4 packs total, label size 4x6 inches (about 101x152mm). BPA and BPS Free, please be rest assured use. 💎EXCELLENT QUALITY: 4X6 Thermal label use high-quality thermal coating which is fade resistant, scratch resistant, waterproof and oil-proof. The strong adhesive backing ensures that the thermal label can be firmly attached to the goods, it's the perfect choice for shipping labels. 🛒EASY USE: 4X6 Folding shipping labels designed with a perforated line between each thermal label which is easy to tear. Thermal label are easy to peel off and stick firmly on various material of surface, such as Corrugated cardboard shipping boxes, shipping bags, Kraft envelopes, poly mailers or bubble mailers. 🖨️THERMAL PRINTER LABEL: Compatible with various thermal printers on the market, such as Zebra, Rollo, Drpt, Polono, Munbyn, Eltonfargo, Jadens, Labelrange, Offnova and more. Printing friendly no damaging the printer. 📦MULTI-PLATFORM COMPATIBLE: 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. The fanfold label has a perforation line for easily tear-off. It is ultra-strong adhesive to corrugated boxes and mailers, compatible with Zebra,Intermec, Datamax, Printronix and other direct thermal printers. The fanfold thermal labels use upgrade material that prints crystal clear images, and labels use premium-grade adhesives that long-time stick to package surfaces.