Is there a truly reflective surface besides water?

Hey, I’m currently working on a house, and I just need a simple mirror or reflective surface for the bathroom. There aren’t any mirror entities, and I tried a reflective texture, called like reflectivity 90 or something, but in-game it just stays bright white. Any help would be appreciated.

func_reflective_glass , I can’t remember the full details. There is a special texture for it too

ah, thank you.