A notice to customers dazzled by the low-priced products on Chinese shopping apps: the days of getting trendy clothing, tools and gag gifts that cost less than lunch delivered to your door in 10 days are probably numbered.

Duties will be levied on imported goods valued at $800 or under sent via channels other than the international postal network.

President Trump signed an executive order Wednesday closing a trade loophole on cheap goods from China that were previously exempt from tariffs. Trump, 78, argued that the so-called “de minimus” exception allowed shippers from the People’s Republic and Hong Kong to “hide illicit substances” in packaging and products.