The eye smudge + diffuse brushes are designed for expert smudging and blurring of eye makeup. Use with eye pencils or shadows. Set includes: > Smudge brush: short, dense bristles help diffuse and blend powders, creams, and gels along the lash line. > Precision smudge brush: unique tip helps blur eyeliner along the lash line. > Bonus sharpener: ensure the most accurate lines from your favorite eye liner pencil before smudging. Removable insert to sharpen your larger pencils.