Top quality, traditional self-seal white paper envelopes from leading UK manufacturers, available in convenient and easy to store packs, or bulk boxes for heavier usage. Envelope sizes are: DL (110 x 220mm, 80gsm), for twice folded A4 paper, C5 (160 x 230mm, 90gsm) for A5 unfolded or once folded A4 and C4 (325 x 230mm, 90gsm) for unfolded A4 paper. Lightly printed interior prevents show-through, keeping contents private, making them suitable for business and commercial use in offices, warehouses, shops and other environments. Also available in manila or with clear windows. Brand may vary to maintain continuity of supply.