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The BSC PREFERRED CPM1013BK is a case of 100 black polyethylene poly mailers designed to protect products from moisture, punctures, tears, and tampering during shipping. Each mailer features a high-strength seam construction that keeps contents secure even when packed to capacity. The outer surface is black for a professional appearance and to attract attention in transit, while the inner lining is silver. A self-seal closure eliminates the need for tape or additional fasteners. This product is noted as equivalent to part number S-21880BK and is sold in cases of 100 units.
These mailers are suited for e-commerce fulfillment, distribution centers, and shipping operations where a lightweight, durable, moisture-resistant envelope is required. They are appropriate for packaging soft goods, documents, and non-fragile items. Labels, stamps, and ink adhere directly to the outer surface without additional preparation. The self-seal strip allows for fast, consistent closure on high-volume packing lines or at individual shipping stations.
Equivalent to part number S-21880BK. Designed as a standard poly mailer for general packaging and shipping applications where moisture and puncture resistance are required.
No tools are required for use. Peel the self-seal strip liner and press firmly to close. Ensure contents do not exceed the recommended fill capacity to maintain seam integrity. Store mailers flat in a dry environment prior to use to preserve the adhesive seal strip.
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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