What it is: A brush designed for precision shading on the lid, in the eye crease or along the lashline.What it does: The soft, smooth fibers of this brush are gathered into a pencil-shaped tip. It's ideal for blending eyeliner into eyeshadow to create a smoky-looking eye. It defines, too, and is ideal for the application of powder and cream formulas. M·A·C professional brushes are hand-sculpted and assembled using the finest quality materials. The 100% synthetic brushes incorporate the latest innovations in fiber technology for superior performance and improved longevity. Synthetic bristles