• Pack of 4 Tze621 black on yellow replacement tapes for Brother labels. • Compatible with a wide range of Brother P-touch label maker models. • Features: Self-adhesive, strong adhesion, resistance to high and low temperatures, abrasion resistance, corrosion, fading, sun protection, water, humidity, and oil. • Recommended use in apartment management, offices, hotels, warehouses, hospitals, schools, and plants. • Tips: Tighten and smooth the tape before use to avoid jams. • Do not pull the label or touch the blade during printing.