3M Self-Adhesive Packing List/Invoice Enclosed Envelopes, 5 1/2in x 4 1/2in, Black/Red, Pack Of 1,000

Combined messages eliminate the need to purchase separate envelopes 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. Black printing on a bright red background helps ensure readability.