Partners Brand MRX1XL Corrugated Mailers White PK50

Corrugated Mailers for Small Shipments

These white corrugated mailers measure 6 1/2" x 3 1/4" x 1 1/4" and come in a pack of 50. They are designed for shipping flat or slim items that fit within the internal dimensions. The rigid fluted construction helps protect contents from bending and minor impacts during transit. Suitable for documents, small electronics accessories, or similar lightweight goods.

Check Item Dimensions Before Ordering

Verify that your product fits inside the 6 1/2" x 3 1/4" x 1 1/4" interior space before purchasing. The mailers are not expandable and cannot accommodate thicker or larger objects. Ensure your packing process can seal the flap securely without overstuffing. Buyers who need more internal volume or a different box style should select an alternative size.

Lightweight Rigid Protection

The single-wall corrugated board adds minimal weight to the shipment while resisting crushing in normal mail handling. No moving parts or materials generate noise during packing or transport. The flat-packed mailers store easily on a shelf until needed. Orders of $75 or more ship free directly from the manufacturer.