Custom Packages?

Hi Michael

With USPS, shipping a tube is like shipping a package; use length x height x width. You can find guides for measuring packages from USPS.

A few tips:
– You can get free tube packages from USPS if you ship Priority Mail or Express. The package is also pre-populated in WooCommerce Shipping.
– This reference from USPS might be helpful to see what services are compatible with tubes.