M.A.C Brushstroke Liner- Brushblack (Teddy Collection)M. A. C Brushstroke Liner Brushblack (Teddy Collection) About the Product: Fine tune your attitude! Brushstroke Liner features a precision brush tip that makes liquid lining sharp, fast and easy. This mistake proof, tapered tip pen creates the perfect line thick or thin in one sweep so you can define your eyes without a second thought. For the finest line, use the brush tip; for a bolder one, try the brushs flat side. Smudge proof and budge resistant,