The brush is purely plastic, so it is really hard and rigid. I had to be extra careful to avoid jabbing myself in the eye.
This mascara is all right on its own, I didn't get any clumping but it tends to flake a bit towards the end of the day. I feel like it does a great job defining,separating, and lengthening, but I don't get any volume from it at all, so I like to pair it with something else- below I used Essence "Big Lashes". I prefer applying layers before they dry.
Overall, it's not a bad mascara and it's great for bottom lashes, but I wouldn't buy it again because of the brush, and because I like to use just a single mascara most of the time.