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Manilla Large Letter Cardboard Envelopes are one of the most common types of envelopes; the perfect choice for sending a range of important documents that need to be kept flat during transit. Our range of manilla large letter envelopes includes 3 sizes of Please Do Not Bend envelopes; made from a high-quality rigid backing board, have a paper front to give your items a good level of protection whilst not adding to your postal charges, and are sized to comply with Royal Mail sizing. Whichever size you go for, we’re confident it’ll be perfect for your needs, and an excellent eco-friendly solution – fully recyclable, biodegradable, and completely plastic free.
Please note: Large letter sizing is up to 240 x 165 x 5mm with a 100g weight limit.
