Brother MK221BZ - Label tape - black on white - Roll M-K221BZ gives you high-quality labels that are good for the whole home. The small, compact tape is available in several colors and widths, and uses direct thermal printing (completely without ink) to create the print on the tape.This black and white M-K221BZ tape fits any P-touch label printer with the M tape logo on the tape cover, and is a great organization tool that can be used to label everything from documents and folders to electrical outlets and containers.Brother has tested the versatile M-K221BZ to ensure that it is as reliable as possible, giving you high-quality prints every time you print, so you get clear and easy-to-read labels.