These in square envelopes are produced with Gold 120Gsm paper, making them a completely recyclable and eco-friendly option for wedding invitations, thank you notes, florist cards and much more. We pride ourselves on quality, and our 155 x 155mm envelopes are manufactured with a Gummed to ensure a quick and easy closure, whilst keeping the contents safe and secure. We also offer a custom printing option on a vast selection of our envelopes - if you have a specific requirement, please get in touch with a member of our team who will be happy to assist you further.