50 Brown C4 9oz Large Envelopes No Window Mailing Mailers for A4 Letters Invoices Brochures

This product comes in a C4 format, which unfolds to A4 size. It’s made from 90 g/m² brown paper and has no window. The closure features a straight flap on the small side with an adhesive that has a detachable strip. Ideal for invoices, applications, corporate brochures, account statements, contract documents, and contracts, each package contains 50 pieces.