To make professional labels, use the Brother TZe-621 tape. The Brother TZe-621 tape delivers glossy labels with black text on a yellow background. Aside from offices, the genuine Brother TZe621 black on yellow 9mm label can also be used for other applications, even for laboratories. Labels made by the Brother TZe-621 P-Touch laminated tape will definitely hold up to different temperatures and even industrial chemicals. The gloss black on yellow 9mm x 8m Brother TZe621 label tape is very easy to use and only takes a few minutes to install.