itch.io

When logged in to the website, the items are under:

1. My Library->My Purchases->Bundles->Bundle for Racial Justice and Equality
2. Use the 'Search for title' box to search for items (new ways to navigate are in development).
3. Click the 'Download' button by the item you want and the item is added to your Library (and you are brought to the item's download page).

Then either (option 1 might be preferable):

1. Use the itch app to download the items when you want and the app keeps the items updated
2. Or you can download the files from the item's page