Waterproof Guyliner by NU Makeup. Achieve bold, smoldering eyes with the definition of black guyliner. Liquid eyeliner for men is sweeping the nation as the new rugged-man eye accessory. Features professional waterproof formula for long lasting and smudge proof liquid eye makeup. Guyliner pen designed with felt tip applicator that easily glides on skin for quick glide-and-go application. Fine precision tip offers incredibly smooth lines with a highly pigmented finish. For a subtle look, carefully rim liner close to lash line or waterline. Enhance your eyes to their fullest potential with the ease of longwear guyliner.