Scroll down. There's a section just for the Kindle Touch. The K4/K5 are the non-Touch. Winterbreak won't work on a Kindle that old, though. It needs a K5 or newer. The KT is a 4th gen device.
Here's a handy guide to use to ID a Kindle:
https://www.androidauthority.com/whi...-have-1073996/