Specifications - Label Size: 1-9/50"x3-27/50" (30mm×90mm). Including 300 thermal labels per roll, total 2 rolls - 600 pcs. Great Compatibility - iDPRT address thermal labels are suitable for most thermal label printers, including iDPRT, Rollo, DYMO, Brother, Zebra. Wide Application - The thermal label can be perfectly used for FBA product labels and as return address labels. Also great for barcode, UPC, envelope, mail, letters, parcel, and packaging. Premium Adhesive - iDPRT thermal label has strong adhesive. You don’t have to worry about whether the address label will fall off during use, or whether the content can’t be recognized after shipping, which will help your work better. Eco-friendly - Because direct thermal printing process, it doesn’t require ink toner or ribbons during use. That means it’s more eco-friendly, and it will help you to save your cost. iDPRT Thermal labels, it includes 2 rolls, 300 labels, size 1-9/50 inches x3-27/50 inches, ideal for address labels, barcodes, postage labels, FBA labels, QR code labels, tags and more, does not need ink or toner, it is compatible with many thermal printers including Zebra, Brother, Dymo and IDPRT, labels have a strong adhesive so they are good for packing labels.