Sometimes the urge for an upgraded gaze strikes at the last minute, thats where the Eylure Underlash Refills step in. n The set of 30 lightweight clusters, available in 3 lengths (10mm, 12mm, 14mm), allows you to unleash your creativity and craft your perfect look. Applied under your natural lashes, the easy-to-use clusters deliver a salon-worthy, supernatural finish. The lashes stay in place for up to 7 days, allowing you to enjoy long-lasting, volumised lashes again and again.