Inner Eye Corner Blending Brush: Guerniss Professional Make up Brush 15 is an Eye Inner Corner Highlighting Brush. When you are done with your eye make-up, if you highlight the eye inner corner, it gives you a very sassy and attractive look. By highlighting the eye’s inner corner it just changes your full make-up look. And to create that look, you need to use the eye inner corner highlighting brush of Guerniss.