C512 Pro Sculpting Crease by Crown Brush. 

The Pro Sculpting Crease Brush is the perfect tool for blending out shadow in the crease area of the lid. Because of the high grade sable/squirrel bristle blend, this brush easily picks up large amounts of product, dispersing it evenly along the lid, resulting in a more dramatic, full coverage application. Perfect for those smokey eye, intense looks that require master blending.

Bristle Profile: High grade Kolinsky Sable and Squirrel hair, Easy to clean and maintain with proper care, Incredibly soft yet springy enough to maintain shape and structure throughout countless uses, Natural hair easily picks up large amounts of powder.