How to clean makeup brushes

Dita

Hi! I want to ask the proper ways to clean makeup brushes and beauty blenders. Any tips? Also the eyebrows spoolie that’s on the other end of my eyebrow pencil is very prone to getting bits of dust in it, how do I get rid of those? I want to clean it with water like cleaning makeup brushes normally, but I don’t want the water to ruin my eyebrow pencil too.

(This is the spoolie I meant)