36H Grip Liner Automatic Gel Pencil 01 Intense Black Infaillible 36H Grip Liner, Automatic Gel Pencil for a strong and long-lasting line up to 36H* product details Automatic gel pencil. Soft tip for a precise and defined line. The convenient integrated blender is great for easily achieving an intense smoky look. Gel texture that facilitates application, for a firm line that fixes on your eyes for up to 36 hours*. Water and sweat resistant. Rub-proof. (* Self-assessment test on 100 women)