# Magnetised material with a field strength of 0.418A/metre or more at a distance of 4.6 metres from the outside of the package · Royal Mail / Post Office — Mailing and air-carriage restrictions by item category

For Magnetised material with a field strength of 0.418A/metre or more at a distance of 4.6 metres from the outside of the package · Royal Mail / Post Office, item category is Magnetised material with a field strength of 0.418A/metre or more at a distance of 4.6 metres from the outside of the package; carrier is Royal Mail / Post Office; restriction type is prohibited; scope is UK & International, recorded from its source on 2026-08-30.

- **Item category:** Magnetised material with a field strength of 0.418A/metre or more at a distance of 4.6 metres from the outside of the package _(verified: appears in the quote below)_
- **Carrier:** Royal Mail / Post Office _(our reading, not quoted from the source)_
- **Restriction type:** prohibited _(our reading, not quoted from the source)_
- **Scope:** UK & International _(our reading, not quoted from the source)_

## What the source says

> Magnetised material Magnetised material with a field strength of 0.418A/metre or more at a distance of 4.6 metres from the outside of the package International – not allowed in the mail UK – not allowed in the mail

## Source

- https://www.postoffice.co.uk/mail/what-can-i-send

Last verified: 2026-08-30. Review by: 2027-08-30.
Part of [Mailing and air-carriage restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).