"These labels are perfect for printing shipping labels and other home and office uses. Add barcodes to these versatile labels that work well with USPS®, Click-N-Ship®, Pitney Bowes Shipstream™ Manager Deluxe, eBay®and PayPal® and other popular shipping software. NOTE: Does not include the black plastic cartridge. Cartridges are not universal for every roll. Please look in the ""Related Products"" if you would like to purchase one of HouseLabels' re-usable cartridges. A different cartridge is required for each roll model. 2-3/7"" x 4"" 300 labels per roll Labels are bright white for professional results Labels are smudge-proof as well as water and oil resistant BPA Free All labels sold by HouseLabels for use in Brother P-touch Label Printers are tested to ensure that these labels all fall within Brother material specifications BROTHER P-touch Label Printers: QL-500, QL-550, QL-570, QL-570VM, QL-580N, QL-650TD, QL-700, QL-710W, QL-720NW, QL-1050, QL-1050N, QL-1060N "