HI anonymous user,
Looks like Microsoft has removed the downloadable RSAT tools for Windows 7, as Windows 7 is no longer supported.
You can always try to find unofficial sources for the RSAT tools for Windows 7 by using your favorite search engine.
Edit: I happened to have the RSAT tools for WIndows 7 (64-Bit) installer, I've uploaded it to my blog, you'll find it here:
https://thesystemcenterblog.files.wordpress.com/2021/02/9ec67-rsat-tools-for-windows-7-64-bit.zip
Here's a Virustotal link confirming it's safe:
https://www.virustotal.com/gui/url/6ee6daba83edef8f484a4e5eb4a9a42b6c30ed850dd84d8023ae116031e041de/detection
(If the reply was helpful please don't forget to upvote or accept as answer, thank you)
Best regards,
Leon