It is possible to send magnets within your mail piece, but there are some restrictions which will allow the mailing to qualify for the best USPS and not stick to USPS equipment. Magnets are a great way to extend the shelf-life of your offer and will get the attention of your recipient.

To send magnets through the mail and get the lowest USPS postage rates follow the guidance below.

For letter-size pieces:

The magnet should not be thicker than 1/32.
The magnetic surface may not exceed 26 square inches (length times height).
The magnetic surface must face the carrier piece but can face either side of the piece
Enclosed magnets cannot shift excessively. They can be affixed to the contents, wrapped within the contents, or fill the mailpiece with no more than 1/2 inch clearance between the left and right edges of the magnet and the mailpiece edges.
Magnets permanently attached to, or prepared as, an integral part of unfolded cardstock pieces should be located on the leading edge of the mailpiece.

For flat-size pieces:

The magnet should not be thicker than 1/32.
The magnetic surface must face the carrier piece but can face either side of the piece
Enclosed magnets cannot shift excessively. They can be affixed to the contents, wrapped within the contents, or fill the mailpiece with no more than 1/2 inch clearance between the left and right edges of the magnet and the mailpiece edges.

If you have samples of the mailpiece we can have it approved by the USPS to ensure it can run smoothely on the USPS machinery and receive the stamp of approval from the post office.