Maco white all-purpose labels, 2 x 4, 2500/box create quality labels at your desk. Acid-free and lignin-free. Ideal for bulk mailings and identification. Features permanent adhesive. Won’t jam in laser or inkjet printers. Compatible with most popular label software programs. Label size – text: 2 x 4; label color(s): white; machine compatibility: inkjet printers; laser printers; adhesive: permanent self-adhesive. this product arrives to most customers in 2-3 business days.