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Our Letter Cardboard Envelopes are designed to fit the Royal Mail postal size regulations for letters. Available in a range of letter sizes, you can choose from cardboard envelopes in brown, manilla, or white. The range includes All Board Envelopes, Board Backed Envelopes, MailJacket™ Lite, and products from ColomPac®. All of our cardboard envelopes have a useful peel and seal adhesive strip, which provides a strong closure so you can be sure your items will arrive in perfect condition.
