This is commonly referred to as Brother P-touch TZe tape (or M-K series tape).
Here’s a quick guide to help you find the right one:
Common Brother 9mm Tape Cartridges.
TZe-221 / M-K221: Black text on a white background. Standard all-purpose laminated tape.
Laminated vs. Standard: Most TZe tapes are laminated, making them durable, weatherproof, and scratch-resistant. Standard M-K tapes are non-laminated and best for indoor, flat surfaces.
Compatibility: These 9mm cartridges work with many Brother P-touch models, including the PT-H200, PT-P900W, PT-55, PT-60, PT-65, PT-75, PT-85, PT-90, PT-110, PT-1010, and PT-1280.