Your lash line won't know what hit it. The E15 Flat Definer features a thin, flat edge best for applying powder, cream or gel products to the eye area. It creates a sharp, precise line — ideal for brushing along the lower lash line with shadow for a liner effect. Steady hand not included. SigmaTech® Fibers - Sigma Beauty's exclusive selection of high performance synthetic fibers engineered to outperform traditional animal hair. Features technologically advanced filaments with specialized tips developed to hold and deliver cream and powder products without any absorption into the bristles. Built to last, SigmaTech® fibers are antibacterial, hypoallergenic, and will maintain their original shape and color even after multiple washes. Ferrules - The patented 3 - ring brush ferrule is made with high performance SigmaAllo for durability and strength. Patent No. D718060.Handles - The brush handle is made from a lightweight, sustainable source of wood which receives 8 coats of paint, making it scratch resistant and guaranteed to last. About the BrandSigma Beauty | Sigma Beauty E15 – Flat Definer Brush in Brown