INSTANT VOLUME & LENGTH : 4D Silk Fiber Eyelash Mascara can gives your eyelashes a boost of volume and length instantly,provides defined & voluminous lashes with just one coat. Build the look for even thicker, fanned lashes. , WATERPROOF & LONG LASTING : This waterproof and long-lasting mascara formula ensures that your eyelashes stay long, thick and full throughout the day. No need to worry about rain or sweat staining your eye makeup, allowing you to last a day of beauty