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This range of large letter sized corrugated EcoMailers™ are cost-efficient with dimensions designed to fit within Royal Mail large letter sizing. Offering lightweight protection, our Priory Elements EcoMailers are ideal for sending a great variety of items through the courier network. Made from E-flute corrugated cardboard and available in both pocket and wallet style - plus they’re easy to print on. Featuring pre-folded depth creases and a peel & seal adhesive closure for fast, efficient packing - there’s no need for additional packing tape too.