Brush by Sigma. The PATENTED 3DHD® Kabuki Brush is a multifunctional brush engineered to perfection. The Sigma Beauty Kabuki brush was uniquely designed for all areas of the face to apply liquid, cream and powder products uniformly on every curve, crease, and angle. Unique Feature: Dense 3DHD brush with a double wedge flat and pointed head Function: Buffed foundation application Recommended Use: A multi-functional design for all areas of the face to apply liquid, cream and powder products uniformly on every curve, crease, and angle