Ardell Duralash Knotted Flare Individual Lashes Short Black. DuraLash individual lashes are the closest thing to natural lashes ever developed. These exclusive knotted individual lashes are permanently curled, waterproof, easy to apply, and comfortable to wear. They are so natural you will forget that  they are not your own lashes these lashes can be worn for up to 6 weeks at a time. One DuraLash package contains 56 lashes.