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The BSC PREFERRED M552K is a pack of 50 kraft corrugated mailers designed for shipping small, lightweight, and fragile items while keeping postage costs low. Manufactured from 200/ECT-32-B kraft corrugated material, these mailers fold to create double walls of protection on the front and sides, providing crush resistance during transit. No tape, glue, or staples are required to close them, making the packing process faster and more efficient for shipping and fulfillment operations. Each pack contains 50 mailers, sold as a single unit of measure.
These corrugated mailers are suited for e-commerce fulfillment centers, warehouse shipping departments, print shops, and any operation that regularly sends small, fragile items through the mail. The self-sealing fold design reduces the need for additional packing supplies, making them practical for moderate-volume shipping environments. Their lightweight construction is optimized to help keep shipments under postal weight thresholds, which can meaningfully reduce shipping costs across high-volume orders.
Designed as a general-purpose corrugated mailer suitable for shipping small, lightweight, and fragile items via standard postal and parcel carrier services.
No tools are required for assembly. Fold the mailer according to the built-in score lines to form the double-wall enclosure before placing contents inside. Ensure items are properly centered and cushioned within the mailer before sealing. Follow carrier guidelines for maximum weight and dimensional limits when selecting this mailer for a given shipment.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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