OEM Maco return address labels are designed for high-quality performance in both laser and inkjet printers. Ideal for bulk mailings and identification, these bright white label stock produces sharp text and rich colors. The labels are acid-free, archival-safe, and lignin-free, preventing yellowing or becoming brittle over time. Compatible with most popular label software programs, each standard-size (letter-size) sheet feeds automatically from your paper tray and includes four labels.