Waterproof. You can draw both fine lines and bold lines without blurring.A rich, jet black gives enhanced depth that emphasizes the frame around the eyes while accentuating the impressions of the irises and pupils for big eyes.- A rich, jet black that gives enhanced depth to emphasize the frame around the eyes Carbon Black and Ultrafine Color Ingredient- Even eyes with fine lines and irregularities can achieve evenly drawn lines with lustrous, beautiful color Carbon Black and Ultrafine Color Ingredient Speedy Dry Film Formula EX- Dries quickly, resistant to tears, sweat, sebum and friction. Speedy Dry Film Formula EXHow to use: Draw lines along the lash line with the brush tip. After that, you can arrange them depending on your desired look.For cool, sexy big eyesExtend the lines upwards from the outer corner of the eyes.For big eyes with a feminine, lovable moodDraw a wider line above the iris.