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Padding Honeycomb Mailer | 80+80+80 GSM | Brown Paper Bag with Crush Resistant Structure for Fragile Items Description:This 17x(23+5) cm triple-layer kraft mailer is ideal for longer items such as hardcover books, tablet cases, or A4 documents. The three-layer construction (80 GSM each) ensures excellent rigidity and impact resistance, preventing corner damage during transit. The brown kraft material is sourced from post-consumer recycled fibers, making it a green alternative