• This www.google.com/url

Says "5.3.26 Magnetised material with a magnetic field strength of 0.159A/metre or more at a distance of 2.1 metres from the outside of the package e.g. PA speakers."

This www.supermagnete.de/.../Can-I-send-magnets-by-mail suggests it can be done in Germany at least. And suggests you test the package with paperclips 

Indeed and a paperclip test which will detect perhaps the low tens of milli-Tesla on the package surface, is a far more useful, realistic and easily performed and understood test.

Well, unless you intend to add 2m of packing all round, which will  of course have the side effect  of  making it hard to get into the average letter box.

Mike.

Indeed and a paperclip test which will detect perhaps the low tens of milli-Tesla on the package surface, is a far more useful, realistic and easily performed and understood test.

Well, unless you intend to add 2m of packing all round, which will  of course have the side effect  of  making it hard to get into the average letter box.

Mike.

It doesn't state the size of paperclips Mike

OlympusMons said:

It doesn't state the size of paperclips Mike