MACO Cover-All Opaque Laser/Inkjet Shipping Labels, Inkjet/Laser Printers, 2 x 4, White, 10 Labels/Sheet, 250 Sheets/Box - Opaque labels are ideal when you're reusing boxes or sending your customers pre-printed product-return labels. Cover-All design ensures that any pre-existing shipping information will be fully obscured once the new label is placed over the old. Featuring near universal compatibility with all popular label-creation software, it's easy to create quality labels at your desk; and once you have your information entered correctly, simply print your labels on any laser or inkjet printer. Full-sheet format and clean edges ensure smooth, jam-free feeding. Acid- and lignin-free with a permanent-adhesive backing.