Make harsh lines disappear for your most seamless eye look yet, using this cult-favorite SigmaTech® fiber brush. Function: Apply + combine shadow shades Unique Feature: Slightly firm, rounded brush head HIGHEST-QUALITY FIBERS: Exclusive synthetic antimicrobial fibers Engineered to better hold, apply + blend products FERRULES WITH UNMATCHED STRENGTH: Durable + corrosion-resistant SigmaAlloy™ Precious metal plating for shine + strength Exclusive, patented interlocking technology Double-threaded engineering SLEEK, DURABLE HANDLES: Solid polymer-based handles are waterproof Outlasts all product formulas + frequent brush care