It really doesn't shake when you apply eyeliner! I bought it after watching an influencer's YouTube video, half-believing it. Well, it's cheap, so. that's what I thought. I'm clumsy with my hands, so no matter what eyeliner I use, it always ends up wobbling, but this brush is short, so I can apply it straight. I'm really impressed. The only thing I'd like to say is that it would be better if there were more colors available, as they only come in black and brown! I'll buy it again!