75 Pale Grey 80mm x 215mm Letterbox Style Envelopes. Gummed. 120gsm Letterbox. Value Pack. - Rainbow Envelopes
50 x Envelopes Grey / Blue DIN C6 Format 11.4 x 16.2 cm - Self-Adhesive - Envelopes without Window - Christmas, Greeting Cards & Invitations - For A6 & A4 Paper : Amazon.co.uk: Stationery & Office Supplies
C5 Grey String & Washer Envelopes [Qty 100] 229 x 162mm – All Colour Envelopes
155x155mm DARK GREY WALLET V FLAP GUMMED PLAIN 120GSM