Pack of 50 Brown C4 Mailing Envelopes 90gsm Straight Flap Wet Seal for Business Letters

This product features a C4 format (A4 when unfolded) and is made from 90gsm brown paper without a viewing window. It has a straight flap on the short side with a self-adhesive closure that includes detachable strips. Ideal for invoices, applications, company brochures, statements, contract documents, and contracts, each pack contains 50 pieces.