BROTHER TZE621 TAPE 9MM BLK/YEL. The TZ-S621 black on yellow extra strength p-touch tape has stronger adhesive compared to Brother's standard adhesive TZe tape, providing for better performace on difficult surfaces. It will stick to virtually any surface and is durable enough to withstand scrapes and abrasions. Because it's water resistant, it can be used outdoors, as well as indoors. Laminated TZe tapes shrug off spills of any kind; from water, to oil, to chemicals and won't fade under harsh UV rays. And it stays on through hot and cold environments from freezers to microwaves.