They say good things come in small packages... but when you use Pirate Ship, USPS® and UPS® do have a minimum package size requirement!
When shipping a box, the minimum dimensions are 6x3x0.25".
If your box is smaller than that, USPS and UPS could technically reject your package... although we rarely see this happen.
It's best to use a box that's at least as big as the minimum dimensions... but if there's no way for you to do that, we recommend putting the box into a small poly mailer envelope when shipping it.
Chat with us if we can help you figure out a solution 😃