Shipping is open to customers in good standing who live in the 48 contiguous US states.
If you're not seeing shipping yet, here are some things to try:
Make sure you're using the newest version of the app. More about updates
Try quitting your app completely and relaunching it to be sure you're seeing the latest info.
To be able to post shippable items for sale, validate your email address, if you haven't already.
We're happy that you're interested, and hope to see you buying, selling, and shipping with us soon.