Our compatible Brother MK531BZ label tape is black on blue in colour, which makes it very easy to read in almost any lighting conditions. Measuring as full 8m in length, the 12mm tape within the compatible Brother MK-531BZ will last you a very long while.Designed as closely to the specifications of the genuine Brother MK531BZ, this compatible alternative will work without issue in any of the label printers found on this page. The entire length of our compatible Brother MK-531BZ label tape has a strong adhesive on one side making it useful in most organizational tasks.