TuneCore primarily offers digital distribution with the exception of the store Amazon on Demand . This option creates physical CD-Rs for customers as they are ordered on the Amazon store.
You can select Amazon on Demand as a store when you distribute your release on the "My Stores" page."
If you have your own CDs pressed, you might consider Amazon Advantage. This service is not through TuneCore, but it's a way to get your CDs for sale in the Amazon store. For more information go here.