Once you have set up the initial Kindle connection as outlined in the setup guide, you can use the 'Send to Kindle' feature in the following way:
1. From the 'For You' screen, tap on 'My Library'.
2. Tap on 'Saved', 'Finished' or 'Downloads' to find the Blink you would like to send to Kindle.
3. Tap on the 3 dots next to the Blink you would like to send.
4. Select 'Send to Kindle'.