Envelopes
Blake Creative Colour C5 162 x 229 mm 120 gsm Peel & Seal Wallet Envelopes (306) Pillar Box Red - Pack of 500
Make a difference with one's mail - use coloured envelopes High quality 120 gsm coloured envelopes Peel and seal - for extended shelf life and secure sealing Model number: 306
https://www.bizrate.co.uk/envelopes/blake-creative-colour-c5-162-oid30773230204.html