Martha Stewart Home Office with Avery&reg; Weatherproof Labels, 2-1/2 x 3-3/4 Inches, Solid White, 12-Labels/Pack (72433) 2-1/2" x 3-3/4", Classic Permanent adhesive Labels are made of durable material that repels water and moisture Resists scuffs, tears, and smudges Compatible with laser printers, or write on label with a permanent marker