Google has now allowed searchers filter down their search results and/or expand their search results using a carousel-style slider at the top of either desktop or mobile search results. With many searches, including
Check out the screenshots of both mobile and desktop:
When clicking on an item, it doesn’t seem to filter within your existing search. Rather, it’ll take you to a whole new search. By searching for kids clothes, and a shoe filter shows you results for shoes, not kids’ shoes.
Hat tip to @chris_at_b449.