High-quality mailing address labels are made from a high percentage of recycled material & with a chlorine-free process. Permanent adhesive is environmentally benign & won't clog the recycling process. Acid-free, lignin-free labels offer archival-quality & will not yellow. Bright white labels are compatible with both laser & inkjet printers. Each sheet has 30 labels. Packaging box is made from a high percentage of recycled material.