30% off our range of these solid board envelopes known as postal pockets - a sturdy, fast and secure way of sending books or packages by mail or courier. These handy cardboard mailers feature a peel n' seal strip for easy sealing and a perforated tear strip for simple opening. Strong, high-grade 350gsm cardboard protects contents in transit. Made from sustainably-sourced materials and 100% recyclable.
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