What it is: A medium-width brush with a row of fibers to help concentrate product application in a line, such as along the upper lashline or below the lower lashes. What it does: This patented brush applies a perfect precise line of targeted product and can also be used for special effects makeup to create medium-sized lines and linear shapes. Artis brushes are made exclusively with CosmeFiber, a revolutionary engineered fiber made for applying cosmetic and makeup products. Color(s): smoke. Brand: ARTIS. Style Name: Artis Elite Smoke Linear 3 Brush. Style Number: 5420912. Available in stores.