Cover-All Opaque Laser/inkjet Shipping Labels, Inkjet/laser Printers, 2 X 4, White, 10 Labels/sheet, 250 Sheets/box Ideal when you're reusing boxes or sending your customers' pre-printed product-return labels. Fully opaque, Cover-All™ design. Near universal compatibility with all popular label-creation software. Compatible with both laser and inkjet printer. Full-sheet format and clean edges for smooth, jam-free feeding. Acid- and lignin-free. Permanent-adhesive backing. Our Price Buys you: 2500