The genuine Brother TZe-S121 label maker tape cassette provides clear and legible labels that last. The special strong adhesive offers more grip, ensuring the label stays stuck on uneven surfaces. It is useful at home, the office, or the workplace and can be used to identify contents from folders and shelves to USB flash drives, cables, and other devices. These adhesive laminated labels are developed to withstand extreme temperatures and are resistant to chemicals, abrasion, sunlight, and underwater use, making them suitable for both indoor and outdoor use. TZe tape cassettes are quickly and easily installed and are available in various widths, colors, and materials, ensuring that the P-touch machine meets all labeling needs.