The shipment of certain goods and substances is prohibited by law in all countries. These include, but are not limited to: perfumes and aftershave, lithium batteries, aerosols (e.g. deodorants, air fresheners, hairspray and whipped cream), gases (flammable and non-flammable), flammable liquids and solids, oxidising agents and organic peroxides, toxic and infectious substances, radioactive materials, acidic substances, drugs and intoxicants, magnets, excise goods, weapons (covered by the Arms and Ammunition Act), explosive substances and goods, pornographic materials, human and animal material, live animals, medical/dental equipment and more. For more information on PostNL's prohibited items, please refer to their website.