F83 Curved Kabuki F83 Curved Kabuki The Sigma F83 Curved Kabuki enables you to contour with ease. Designed with soft, dense Sigmax bristles cut on a curve to hug the angles of your face, this unique tool places products right where you want them.. Exclusive synthetic, antimicrobial fibers engineered to better hold, apply, and blend product. Durable, corrosion-resistant SigmaAlloy ferrule with precious metal plating for shine and protection. Responsibly sourced, lightweight wood handle with 8 coats of paint and primer for long-lasting quality. Cruelty-free. Apply and blend foundation, contour, or blush into hollow of cheek or along jawline. FREE 2-year warranty on Sigma brushes and brush care gadgets. For conditions and exclusions please visit SigmaBeauty.com. SGBY-WU10. F83. Sigma Beauty's drive to better your beauty routine sets the foundation for every product creation. They're looking to you and your everyday for inspiration, then infusing the highest-quality materials, ingredients and technology to build solutions you'll revel in. Every innovative beauty tool, texture, formula and cosmetic color makes your life easier, more fun and uniquely-beautiful.