WHAT IT IS • Innovative design with retractable shutter window, allowing brush to maintain its perfectly tapered shape when using on the go • A must-have tool for accurate shaping of the mouth • Unique flat with tapered-shaped tip allowing precise application of any lip product WHY WE LOVE IT • Use for applying lip color with perfect precision Kevyn tip: I prefer to use a lip brush when filling in the mouth; it gives me more control than using the (lip color) tube itself.