Measuring 19mm in width, this black on yellow Dymo 18491 tape is high in contrast and more than large enough for most people to read. The Dymo S0718090 (and every other label tape in this range) has been manufactured to a high quality and has many other additional features, like the easy-to-peel split back design backing paper, that makes finished labels very easy to apply.The Dymo Rhino 4200 and all of the other compatible label machines mentioned on this page use thermal printing technology to craft black characters that are easy to read on the S0718090 tape. With every printer label being resistant to smudges, fading, moisture, extreme temperatures, UV light and more, you can be sure that labels printers with the Dymo 18491 label cartridge are there to stay.