How to remove this weird option in Finder?

Hey,

I have this thing in finder that really bothers me sometimes, as I accidentally press on it and all of the files that are being viewed zoom in. It's kind of difficult to explain. So essentially, there is a small bar at the bottom of the finder menu for me, and when it's pulled, the file icons become bigger. I don't know if this is a feature just for Mojave or whether it's just me. Is there any possible way to get rid of it? As you can see in the picture, when the bar is at different stages, the icons zoom in or out.

Thanks in advance.