MACO Weather-Resistant White Laser/Ink Jet Address Labels are tear-proof, water-resistant and virtually indestructible! They can handle inclement weather and moist environments. Labels can be printed in both laser and ink jet printers and in color and black and white. Label size: 1 x 2-5/8 inches. 30 per sheet, 1500 labels per box. MACO has been providing quality products to the business community since 1916. Their office products truly offer a blank canvas for creative business solutions.