These Go Secure DL Plain Document Envelopes are available for Next Working Day Delivery at the click of a button from the Post Office Shop. They will provide you with a high quality way to protect your documents or invoices and come supplied in a pack of 1000 for convenience.
The PLE-PLN-DL envelopes will protect your documents when sending them with a courier or through the postal service. An opening along the longest side makes it easy to insert a folded piece of A4 paper inside this envelope. A peel and seal feature on the rear of the transparent holder holds the contents inside securely and will fit through any letter or postbox.