White address labels are designed for high-quality performance in both laser and inkjet printers. Ideal for bulk mailings and identification, address labels are acid-free, archival-safe and lignin-free to prevent yellowing or becoming brittle over time. Adhesive is permanent. Labels are compatible with most popular label software programs. Letter-size sheets feed automatically from your printer's input tray. Each sheet includes 30 labels. This product ships in approximately 1 days