Laura Mercier Brow Grooming Brush. Stiff bristles shaped in a “mascara-spool” shape to maintain well-groomed brows throughout the day with Eye Brow Gel. Contoured shapes crafted for precision: The shape, length & diameter of each pro-quality brush ensures precision application & performance. Sculpted barrels conform to the shape of the hand allowing for increased comfort & control during application. High performance fibers increase durability: High-performance man-made fibers allow for customisable shapes, lengths & waves that maximise the pickup & application of the formula they are paired with. High quality fibers allow for longer wear, less breakage & less fallout. Better for you: These durable fibers are hypo-allergenic & easier to clean, making them more hygienic than natural fibers. Ideal for sensitive skin.