3M Top Print Self-Adhesive Packing List Envelope, 4.5" x 5.5", White, 1000-Count

Water Proof; Oil Resistant; Moisture Resistant Self-adhesive backing makes sealing your envelopes easy. Water-resistant face helps prevent damage in damp conditions. Top message placement for easy identification. Features a "packing list/invoice enclosed" message. Dark printing on a bright red background helps ensure readability.