Envelopes are available in a bewildering array of shapes, colours and sizes! However, the most commonly used are for commercial use, these being an A4 letterhead inserted (or folded) into a DL, C5, C6 or C4 envelope mostly with or without an address window. They are generally of the peel 'n strip finish for ease of inserting.
Other commonly-used sizes are the slightly larger versions for posting bulkier items, or for automatic inserting for mass-mailing or direct mail.
Colour Options: One, two or full colour on front only. Please note that printing cannot be printed across the full face of the envelope.