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The BOX PACKAGING INC TM912 is a flat rigid mailer constructed from kraft paperboard with 100% recycled content, including 75% post-consumer material. Measuring 9 inches wide by 12 inches long, this mailer is designed to protect flat and semi-rigid shipments from bending, crushing, and transit damage. The brown kraft finish and clean construction make it suitable for professional packaging applications across retail, e-commerce, and direct-to-consumer fulfillment operations. Each pack contains 250 mailers, making it a practical stock quantity for moderate to high-volume shipping environments.
The TM912 is well suited for shipping apparel, soft goods, accessories, books, and jewelry. Its flat profile keeps items secure without excess bulk, reducing dimensional weight and material waste. The recycled paperboard construction supports sustainability goals without sacrificing structural integrity during handling and carrier transit. This mailer is a standard choice for fulfillment centers, boutique shippers, and warehousing operations looking to balance product protection with reduced environmental impact.
Designed as an OEM-style flat mailer suitable for standard e-commerce and retail fulfillment packaging workflows requiring a 9 inch by 12 inch rigid kraft envelope format.
No tools or trade licensing are required to use these mailers. Store flat in a dry environment to prevent moisture absorption that could affect board rigidity. Follow carrier guidelines for maximum insert thickness and weight limits when selecting this mailer for a given shipment. Do not overstuff, as exceeding the intended flat capacity may compromise the seal and structural protection.
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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