This genuine Brother TZE-S621 label cassette contains 8m of black on yellow strong tape and can be applied to a variety of different surfaces. Results from the TZES621 are guaranteed by Brother to be the finest available and even feel incredibly satisfying.9mm in width, the genuine Brother TZS621 label tape is the ideal solution for any compatible printer. This TZ-S621 features a top-quality strong construction and can be used in conjunction with the Brother PT-D210VP, or any other label maker found on this page.