Add some colour to your mail with C6 Coloured Envelopes. These envelopes are made of high-quality 120gsm paper, with a gummed diamond flap for easy sealing. They are perfect for sending invitations, cards, letters, and more. Choose from a range of vibrant colours and make your mail stand out. C6 Coloured Envelopes are compatible with most printers and pens, so you can customize them to your liking. Order yours today and brighten up someone's day with C6 Coloured Envelopes.