Bundles are templates that you can access to quickly create a recommendation.
To create a bundle, you first need to create a recommendation.
At the last step of creating a recommendation, be sure to click SAVE AS A BUNDLE before you click SHARE LINK.
You'll be asked to name your bundle and click SAVE. When you do so, you'll get taken back to the previous screen so you can proceed with sharing your recommendation link.
You can go back and access that bundle under Account > Saved Bundles or you can pull it into a recommendation the next time you make one.