THICKNESS&LENGTH - 4D Silk Fiber Eyelash Mascara is deeply pigmented and instantly creates beautifully dramatic and bold lashes with just a single application that bring out the beauty of your eyes and compliment your overall makeup look. Upgrade 4D Silk Fiber Eyelash Mascara: Before using it, please read below methods and steps carefully. It requires skills and practice. Other ladies can do it well, you can too. Once you are skilled, you will feel it is really so good and so magical. We appreciate if you can share this good item with your sisters and friends. This waterproof and long-lasting Mascara formula ensures that your eyelashes stay gorgeously long, thick and voluminous all day through rain, tears, and sweat.