155 x 155 Bright Pink Envelopes | Square Envelopes | All Colour Envelopes
Navy Blue Envelopes by Clariana
C6 (114x162 4x6") Coloured Envelopes for Crafts Greeting Cards Party Invitations | eBay
Quality Park 4 x 6 Photo Envelopes, Self-Sealing, for Photos, Invitations and Announcements, 24 lb White Wove, 4-1/2 x 6-1/4 Inches, 50 per Box (QUA10742) : Amazon.co.uk: Stationery & Office Supplies
50 White A4 4x6 Photo Envelopes SELF SEAL - Fits 4 x 6 Photos, Invitations, Strong SELF-SEAL Closure, Size 4.5 x 6.25 Inch, 24lb, White, 50 Pack(36050) : Amazon.co.uk: Stationery & Office Supplies
50 C6 Pastel Blue Coloured Envelopes - Packed by the CandyRushTM Charity - (114x162mm approx. 4x6") For Greetings Cards Crafts & Party Invitations : Amazon.co.uk: Stationery & Office Supplies
C5 DARK BLUE PEEL AND SEAL ENVELOPES
4x6 Envelopes - Etsy UK
Amazon.com : 100 Pack, Size A4, 100lbs Brown Kraft Paper 4 x 6 Envelopes - For 4x6 Cards| Self Seal| Perfect for Weddings, Invitations, Baby Shower| Stationery For General, Office | 4.25 x 6.25 inches (A4) : Office Products