Brother M521 Black on Blue Label Tape – 3/8” (9mm) x 26.2 ft.
Add a professional pop of color to your labels with the Brother M521 Black on Blue Label Tape!
This non-laminated tape prints sharp black text on a rich blue background, giving your labels a clean, high-contrast look that’s perfect for everyday organization. Designed for indoor use on smooth, flat surfaces, the M521 is great for:
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File folders and binders
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Storage bins and office supplies
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Classroom and home projects
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Crafts, hobby labels, and more
Each roll provides 26.2 feet of easy-to-peel tape with Brother’s standard adhesive—reliable for long-term indoor use yet simple to remove when needed. The 3/8" (9mm) width makes it perfect for compact, easy-to-read labels that fit almost anywhere.
✅ Compatible with all Brother P-touch M-Series label makers
✅ Bold black text on blue for great visibility
✅ Non-laminated—ideal for light-duty, indoor labeling
✅ Fast, Free Shipping anywhere in the U.S.
Make your labels stand out with Brother M521 Black on Blue Tape—the smart, colorful way to stay organized!
| ALSO KNOWN AS: | M521s, MK521, M-K521s, MK521s |
| TYPE: | M Tape |
| SIZE: | 3/8" (9mm) |
| LENGTH: | 26.2' (8m) |
| COLOR: | Black On Blue Tape |
| FOR USE: | Indoor Applications |
| THERMAL M TAPES: | No Ink Or Toner Required! |
| UPC: | 12502053194 |
| UNSPSC: | 55121611 |
