If you're shipping internationally, seeInternational Shipping Prohibitions & Restrictions. Reminder:Mercury (a silver metal that's liquid at room temperature) is prohibited and can't be mailed, whether by itself
If you're shipping within the U.S., seeDomestic Shipping Prohibitions & Restrictions. Reminder:Mercury (a silver metal that's liquid at room temperature) is prohibited and can't be mailed internationally, whether by itself; in devices like antique thermometers, barometers, and switches; or as...